Why can't I stop thinking about a mistake I made?

Usually because you're brooding rather than reflecting: replaying the mistake and measuring yourself against how things "should" have gone, instead of moving toward what you'd do differently. A 2003 study found this brooding style, not reflective thinking, predicts worsening mood over time. It's a common pattern, not a sign you're uniquely careless.

Is dwelling on a mistake the same as learning from it?

Not quite. Psychologists distinguish reflection, purposefully thinking through what you'd do differently, from brooding, passively replaying the mistake without moving anywhere. A 2003 psychometric study found only brooding predicted worsening depressive symptoms over time. Learning from a mistake usually looks like reflection; dwelling on it usually looks like brooding.

What's a fast way to stop replaying a mistake tonight?

Rate how loud the replay feels, 0 to 10. Let the mistake sit loosely in mind, then add 20 to 30 seconds of bilateral stimulation, like the butterfly hug or slow eye movements. Pause, breathe, and re-rate. Repeat for 3 to 5 rounds.

Does bilateral stimulation actually help, or is it just a distraction?

Both, honestly. A 2020 meta-analysis of 942 participants found eye movements reduced how vivid and emotionally charged a held memory felt. That's real evidence for lowering a memory's intensity, not proof the mistake didn't matter, but a low-risk practice worth trying while the replay is loud.

When does dwelling on a mistake need more than this?

If the same mistake has looped for months or years, if it's turned into a broader belief that you're fundamentally bad, or if it's disrupting your sleep or work most days, that's worth more support than a quick technique. A therapist can help untangle a loop that's outlasted the mistake itself.

How to stop dwelling on past mistakes

Q: Why does an old mistake sometimes still feel like it's happening right now?

A 2025 study asked 80 adults about a time they'd done something wrong. People still stuck in self-blame tended to describe the mistake in the present tense, replaying it in vivid detail, while people who'd forgiven themselves described it as finished and in the past.

Dwelling on a mistake usually means brooding — replaying it without moving toward a fix — rather than useful reflection, and research links brooding to worse mood over time. A short round of bilateral stimulation, rating the memory, then adding slow eye movements or tapping while it sits in mind, can loosen the replay’s grip.

It’s not the whole event anymore. It’s one moment, the email you shouldn’t have sent, the thing you said, the decision you can’t undo, running on a loop days or even years later, usually narrated in a harsher voice than you’d ever use on someone else.

That’s not a character flaw, and it isn’t proof you should have known better. It’s a specific, well-studied mental habit, and there’s real research on why it happens and what actually loosens it.

Why does your mind keep replaying the same mistake?

Psychologists studying rumination, the general term for replaying distress on a loop, split it into two modes. Reflection is purposeful: turning a mistake over on purpose to work out what you’d do differently. Brooding is passive: measuring yourself against how things “should” have gone, without moving anywhere. A 2003 psychometric study in Cognitive Therapy and Research found brooding, not reflection, predicted rising depressive symptoms over time, even after accounting for how bad someone already felt. If your replay just repeats the mistake instead of landing on “here’s what I’d do differently,” that’s brooding, and it’s the kind that tends to keep you stuck rather than help you.

There’s also a reason an old mistake can feel like it’s happening right now instead of sitting safely in the past. A 2025 study in Self and Identity asked 80 adults to describe a time they’d done something wrong. People who stayed stuck in self-condemnation tended to describe the mistake in the present tense, replaying it in vivid detail and reimagining what they “should have done,” while people who’d forgiven themselves talked about it as something finished, in the past. The mistake wasn’t what differed. Whether it still felt like it was happening did.

None of this replaying is doing what it feels like it’s doing, either. A widely cited 2008 review in Perspectives on Psychological Science found that dwelling this way tends to deepen low mood and get in the way of actually solving the problem underneath it. Shifting attention elsewhere, at least in the short term, tends to ease the mood.

What’s a bilateral-stimulation practice to loosen the grip?

Shifting your attention on purpose, in a structured way, is exactly what bilateral stimulation (BLS), the rhythmic left-right technique at the center of EMDR therapy, is built to do:

Rate it. On a 0–10 scale, how loud does the replay feel right now?
Let the mistake sit loosely in mind, without narrating every detail or re-arguing your case.
Add bilateral stimulation. Cross your arms and tap left, right, left, right on your shoulders (the butterfly hug), or move your eyes slowly side to side, for 20 to 30 seconds.
Pause, breathe, and notice what shifted. Repeat for 3 to 5 rounds, checking in between each one.
Re-rate. If the number’s dropping, that’s a good place to stop for now.

Holding a mistake in mind while tracking a left-right rhythm gives your working memory two jobs instead of one, and the memory tends to lose some vividness in the process. A 2020 meta-analysis of 15 laboratory studies, pooling 942 participants, found eye movements meaningfully reduced how vivid and emotionally charged a held memory felt. That’s evidence about memories in general, not mistakes specifically, but by the time you’re replaying it at 1 a.m., a mistake already is a memory.

If you’d rather be guided than count rounds yourself, EmEase, a self-guided EMDR app, runs the same technique with a moving on-screen target or alternating tones, paced however you like, in the web app, which includes a 7-day free trial.

When is dwelling on a mistake more than an everyday replay?

This practice fits the ordinary version: a mistake that stings for a few days and then fades on its own. It’s a different story if the same mistake has been running for months or years, if it’s tangled up with a broader sense that you’re fundamentally bad rather than someone who did one wrong thing, or if it’s costing you sleep or motivation most days.

That kind of harshness often traces back further than the mistake itself. If replaying mistakes usually turns into “I always do this” or “I can’t be trusted,” our pages on why you might blame yourself for everything and why you’re so hard on yourself go deeper into that older pattern and where it tends to come from.

Our fuller look at what the research says about EMDR and rumination covers where self-guided practice’s evidence runs out, and is self-guided EMDR safe? goes deeper on that line.

Most mistakes don’t need solving years later. They need somewhere else for your attention to go, and a little proof that you’re allowed to stop paying for them.