Matt Damon turned down the lead role in Avatar. James Cameron offered him ten percent of the film’s profits. The movie went on to gross 2.8 billion dollars. Damon told a Cannes Film Festival audience — I will go down in history as the actor who turned down more money than any actor has ever turned down. He has told the story repeatedly across years of interviews, each time circling back to the same wound — the road not taken. But here is what makes the story even more fascinating and more human. Cameron later disputed the entire thing — saying Damon was never formally offered the role and that the ten percent deal never would have happened. Which means Damon may be torturing himself over a version of the past that did not even exist the way he remembers it. That is regret in its purest form. Not grief over what actually happened — but anguish over a story you tell yourself about what could have been. And if that sounds familiar you are not alone. Research shows that 9 in 10 people carry major regrets. And for 76 percent of people asked on their deathbeds to name their single biggest regret the answer is the same — not fulfilling my ideal self. This post is about why regret has such power over us, what it does to our mental health when we let it, and how to stop letting the past steal the present.
What Is Regret — The Psychology
Regret is a comparison-based emotion of self-blame. Psychologists define it as the experience of imagining that your present situation would have been better if you had decided differently in the past. It requires two things — the awareness that you had a choice and the belief that the other choice would have produced a better outcome.
What makes regret uniquely painful compared to other negative emotions is that it is entirely self-generated. Nobody does regret to you. You do it to yourself. Your own mind constructs an alternate reality — a parallel life where you made the other choice — and then compares your actual life unfavorably to that imagined one. You are competing with a ghost. And the ghost always wins because the imagined life has no flaws, no complications, and no consequences. It is a fantasy dressed up as a memory.
Cornell psychologists identified three elements that make up a person’s sense of self — the actual self which is the person you believe you are, the ideal self which is the person you want to be, and the ought self which is the person you think you should have been based on obligations and responsibilities. When they asked thousands of participants to name their single biggest regret 76 percent said it was failing to live up to their ideal self. Not their obligations. Not their responsibilities. Their dreams. The things they wanted but never had the courage to pursue.
The Five Regrets of the Dying
Bronnie Ware — an Australian palliative care nurse — spent years recording the reflections of patients in the final weeks of their lives. The patterns she found were striking in their consistency.
The most common regret was not having the courage to live a life true to themselves rather than the life others expected of them. People looked back and saw all the dreams they had abandoned to fit into the expectations of family, friends, and society. One patient named Grace had spent decades in an unhappy marriage. After her husband was placed in a nursing home she was diagnosed with a terminal illness — and her biggest regret was that she never pursued the life she actually wanted.
The second most common regret was working too hard. This came predominantly from men who realized too late that they had missed their children’s youth and their partner’s companionship because they were chasing something at the office that turned out to matter far less than they thought it would.
The third was not having the courage to express their feelings. People suppressed what they truly thought and felt in order to keep peace with others — and carried the weight of that silence to their deathbeds.
The fourth was not staying in touch with friends. Many people did not realize the value of their friendships until they were dying and those friends were gone.
The fifth was not allowing themselves to be happier. People realized on their deathbeds that happiness was a choice they could have made at any point — but they spent their lives believing it was something that would arrive when the right conditions were met. It never did because they never let it.
The Father on the Bar Stool
There is a specific version of regret that deserves its own attention because it combines several of the deathbed regrets into one devastating pattern.
A man sits on a bar stool. Maybe literally — maybe it is alcohol. Maybe it is not a bar stool at all. Maybe it is a screen. A phone. A video game. A job he hates but will not leave. A couch. An affair. An addiction. Any of the thousand ways a person can escape from the life that is right in front of them.
And while he is escaping his children are growing up. His daughter’s first steps happen while he is somewhere else. His son’s first home run happens while he is checked out. The bedtime stories that would have become their shared mythology happen without him — or they do not happen at all. The marriage that needed his presence slowly dies from neglect. And then one day — maybe it takes five years, maybe twenty — he wakes up. The kids are teenagers who do not talk to him. The wife left or stayed and became a stranger. The years did not ask permission before passing. They just went.
This is not a story about a bad person. It is a story about an unconscious one. And the regret that follows this kind of awakening is among the most psychologically devastating experiences a human can have — because unlike Matt Damon’s regret about a movie role, this regret involves the people you love most in the world. The stakes are not financial. They are existential.
What About the Regret You Cannot See — When Depression Steals Your Life
Here is a version of regret that most people never consider — the person who arrives at the end of their life and realizes that the reason they never fully lived was not laziness or cowardice or bad priorities. It was depression. Undiagnosed, untreated depression that sat on their life like a fog for decades — muting their ambition, flattening their joy, and making every day feel like something to survive rather than something to experience.
Depression does not announce itself as depression. It disguises itself as tiredness, apathy, boredom, cynicism, and the quiet belief that nothing is really worth the effort. A person can live inside that fog for years — for an entire lifetime — without ever recognizing it as a clinical condition that responds to treatment.
The regret that follows this realization is unique because it carries a double layer of grief. There is grief for the life that was not lived. And there is grief for the fact that it did not have to be that way. Help was available. Treatment exists. And nobody — not the person, not their family, not their doctor — recognized what was happening until it was too late.
If you are reading this and something about that description feels uncomfortably familiar — if you have been moving through life in a fog that you have always just attributed to your personality or your circumstances — please consider the possibility that what you are experiencing might be treatable depression. It might not be who you are. It might be what you have.
The Investor Who Missed the Bottom
Warren Buffett — widely considered the greatest investor who ever lived — has spoken openly about his own regrets. Even Buffett missed opportunities. During the 2020 market crash he was sitting on over 130 billion dollars in cash — and he barely deployed any of it as stocks plummeted to levels that may not be seen again in a generation.
The point is not that Buffett made a mistake. The point is that even the most disciplined, experienced, and successful decision-maker in the world looks back at certain moments and thinks I should have acted differently. Regret is not reserved for people who make bad decisions. It finds everyone — because the nature of life is that every choice closes a door. And closed doors haunt us.
For ordinary investors — people watching their retirement accounts, their savings, their plans for the future — the regret of missed opportunities can become genuinely debilitating. Financial regret compounds with time in the same way that financial gains do. The thought of what that money would be worth now if I had invested it back then grows larger with every passing year. And unlike the original missed opportunity, the regret itself produces real present-moment suffering — anxiety, insomnia, self-criticism, and the corrosive belief that you are fundamentally bad at making decisions.
The Person You Did Not Go After
There is a regret that sits in a category entirely its own — the person you wanted but never pursued. Maybe she was with someone else and you talked yourself out of saying anything. Maybe he was available but you were too scared of rejection to make a move. Maybe the timing was wrong. Maybe you convinced yourself you were not good enough. Maybe you just waited too long and the window closed.
This form of regret is particularly cruel because it is fundamentally unknowable. You will never know what would have happened if you had spoken up. The alternate life your mind constructs — the life where you said something and it worked out perfectly — is pure fiction. But it feels more real than your actual life because desire and imagination are more powerful than memory.
Years later you find yourself thinking about that person at unexpected moments. Not because they were perfect — but because they represent the version of yourself that was brave enough to try. The regret is not really about them. It is about you. It is about the self you did not have the courage to be.
Why Do We Regret What We Did Not Do More Than What We Did?
Research consistently shows that people regret inaction more than action. The things you did not do haunt you more than the things you did — even when the things you did turned out badly.
The reason is psychological closure. When you take action — even if it fails — the outcome provides information. You learn something. You adapt. The story has an ending. But when you do not act the story never ends. The what if remains open indefinitely — a question mark that your mind returns to again and again, constructing increasingly idealized versions of what might have been.
This is why the father who worked too much regrets it more than the father who tried to start a business and failed. The failed business has an ending. The missed childhood does not. It is an absence — and the mind cannot process absence the way it processes events. There is nothing to learn from, nothing to close, nothing to grieve in the normal way. There is only the empty space where something should have been.
How Regret Becomes a Mental Health Problem
Regret is a normal human emotion. Everyone experiences it. But when regret becomes chronic — when it dominates your thinking, disrupts your sleep, poisons your present relationships, and feeds a narrative of self-blame that you cannot escape — it has crossed from a normal emotion into a mental health problem.
Chronic regret is closely associated with depression, anxiety, insomnia, and substance use. People who cannot let go of their regrets often develop a pattern of rumination — repetitive, circular thinking that replays the same scenarios over and over without ever reaching resolution. Rumination is one of the most reliable predictors of depression and is itself a form of psychological torture — a loop your mind cannot exit.
Regret can also manifest as what therapists call moral injury — the distress that comes from having violated your own values or failed to act in accordance with your sense of who you should be. The father who chose work over his children did not just miss time — he violated his own belief about what a good father does. That violation of self creates a wound that is different from ordinary regret. It is a wound to identity.
How to Stop Letting Regret Steal Your Present
Recognize That the Alternate Life Is a Fantasy
The life you imagine you would have had if you had made a different choice does not exist. It is a construction of your mind — and it is always more flattering than reality would have been. If Matt Damon had done Avatar he might have hated the experience. The relationship you did not pursue might have ended badly. The investment you missed might have crashed a week after you bought it. You are comparing your real, messy, complicated life to an imagined perfect one. That comparison will always make you lose.
Distinguish Between Regret and Guilt
Regret says I wish I had done it differently. Guilt says I am a bad person because I did not. Regret is about the choice. Guilt is about your identity. If your regret has become guilt — if you have internalized the missed opportunity as evidence of your fundamental unworthiness — that is where therapy becomes essential.
Use Regret as Information Not Punishment
Regret is trying to tell you something about your values. The father who regrets missing his children’s childhood is learning that presence matters more than productivity. The person who regrets not pursuing a relationship is learning that courage matters more than safety. The question is not how do I stop feeling this but what is this feeling trying to teach me and how do I live differently going forward.
Practice Self-Compassion
You made the best decision you could with the information, the emotional resources, and the developmental stage you were at when you made it. Judging your past self by the standards of your current self is fundamentally unfair. You did not know then what you know now. Nobody does. That is not a moral failure. That is being human.
Start Now
The most powerful antidote to regret about the past is action in the present. The father who missed his children’s childhood cannot get those years back — but he can show up today. The person who did not pursue a dream can start pursuing a different one right now. The investor who missed the bottom can begin investing today. Regret becomes toxic when it paralyzes you. It becomes useful when it mobilizes you.
How Can Therapy Help With Regret?
Therapy is one of the most effective tools for breaking the cycle of chronic regret because it addresses the underlying patterns that keep you stuck.
Cognitive Behavioral Therapy helps identify and challenge the distorted thinking that fuels rumination — the belief that the other choice would have been perfect, the all-or-nothing framing that says because I missed this opportunity my life is ruined, and the self-blame that says I should have known better.
Acceptance and Commitment Therapy helps you hold regret without being controlled by it — acknowledging the pain of the road not taken while redirecting your energy toward the values and actions that matter most to you right now.
EMDR can be particularly effective when regret is tied to traumatic experiences or moral injury — helping the brain reprocess the memory in a way that reduces its emotional charge and allows you to move forward without being anchored to the past.
And sometimes therapy simply provides the space to grieve what was lost — because regret is often grief in disguise. Grief for the self you did not become. Grief for the life you did not live. Grief for the people you did not show up for. Naming it as grief rather than just regret can be profoundly liberating because grief has a natural process. Regret without grief just loops forever.
Do You Offer Therapy for Regret and Depression in Montana?
Yes. Sunflower Counseling Montana offers therapy for depression, anxiety, grief, regret, and the full range of human experience at our in-person locations in Missoula, Kalispell, and Butte, as well as online therapy for clients throughout Montana including those in Billings, Bozeman, Great Falls, Helena, and rural communities across the state.
The past is not coming back. The choices you made cannot be unmade. But the life you live from this moment forward is still entirely yours to shape. And if regret has been stealing your present — whispering to you about roads not taken and versions of yourself you never became — therapy can help you finally set it down and start living the life that is still available to you.
It is not too late. It is never too late. The only moment you have is this one. Start here.
Frequently Asked Questions About Regret and Mental Health
Q: Is regret a mental health problem?
A: Regret is a normal human emotion that everyone experiences. However when regret becomes chronic — when it dominates your thinking, disrupts sleep, fuels rumination, and interferes with your ability to enjoy the present — it has crossed into a mental health concern that benefits from professional support. Chronic regret is closely associated with depression, anxiety, and substance use.
Q: What is the most common regret people have on their deathbeds?
A: Research from Cornell University found that 76 percent of people name their biggest regret as not fulfilling their ideal self — not living up to the person they wanted to be. Palliative care nurse Bronnie Ware identified the five most common deathbed regrets as not living authentically, working too hard, not expressing feelings, losing touch with friends, and not choosing happiness.
Q: Why do we regret things we did not do more than things we did?
A: Research consistently shows that inaction produces more lasting regret than action because actions provide closure and learning while inaction leaves an open-ended question mark that the mind revisits indefinitely, constructing increasingly idealized versions of what might have been.
Q: Can depression cause regret?
A: Yes. Undiagnosed depression can prevent a person from fully engaging with their life for years or decades. When the depression is finally recognized the person may experience profound regret over the time they lost — not because of bad choices but because a treatable condition was stealing their ability to live fully.
Q: How does therapy help with chronic regret?
A: CBT challenges the distorted thinking that fuels rumination. ACT helps you hold regret without being controlled by it. EMDR can reprocess memories tied to regret and moral injury. And therapy provides space to grieve what was lost — because regret is often grief in disguise.
Q: Is it too late to change my life if I have major regrets?
A: No. The past cannot be changed but the present is still yours. The most powerful antidote to regret is action right now. Therapy can help you stop letting the past steal the present and start building the life that is still available to you.
Q: Do you offer therapy for regret and depression in Montana?
A: Yes. Sunflower Counseling Montana offers therapy for depression, anxiety, grief, and regret at our locations in Missoula, Kalispell, and Butte, as well as online therapy throughout Montana.
Call or text Sunflower Counseling Montana today to get started: (406) 214-3810 or email hello@sunflowercounseling.com.
Serving clients in person in Missoula, Kalispell, and Butte — and online throughout Montana.
About the Author: Kerry Heffelfinger is the founder and CEO of Sunflower Counseling Montana, a multi-location therapy practice offering in-person counseling in Missoula, Kalispell, and Butte, and online therapy throughout Montana.