How to stop overthinking after a breakup

Romy Ashwell · Updated October 30, 2026

For the first month after I left, I replayed everything. The way he said “you know how work is.” The anniversary toast. The look on the waiter’s face. At 2am I’d write him long texts in my notes app and delete them at 2:40.

I wasn’t thinking. I was circling.

Why your brain won’t stop after a breakup

Overthinking feels productive. It feels like if you just understand it perfectly, it will stop hurting. Psychologists call this pattern rumination: going over the same distressing thoughts again and again without moving toward a solution. Research has linked rumination to worse depression, more negative thinking and poorer problem-solving. The replay doesn’t heal the wound. It keeps it open.

Checking his social media does the same thing. Research on people who kept watching an ex’s Facebook profile after a breakup found it was linked to more distress, more longing and less personal growth.

You don’t need closure from him to close the door.

10 ways to stop overthinking after a breakup

1. Cut the input. Block, mute or archive. Pick the one that keeps you sane, and remove his profiles from your “just checking” path.
2. Write the story once, properly. Beginning, middle, end. What happened, what you learned, what you want now. Then close the notebook.
3. Use a worry window. Fifteen minutes at 6pm, timer on. When a thought comes at 11am, tell it: “6pm.”
4. Name the loop. “I’m replaying again.” Naming it gives you a small step back from it.
5. Remember it accurately. In one breakup study, deliberately thinking about an ex’s less lovely sides reduced love feelings, while simple distraction made people feel better. Both have their place: a list of what didn’t work for the 2am moments, and a good distraction for the rest.
6. Move your body when the replay starts. A walk around the block breaks it better than willpower.
7. Sleep first. The first month isn’t about him. It’s about sleep. Everything looks worse at 2am.
8. Put your phone in another room at night. The 2am texts are rarely the ones you’d send at 10am.
9. Stay close to people. Tell one friend, “I need to say it out loud once, then help me change the subject.”
10. Get help if it won’t lift. If you can’t sleep, eat or work for weeks, or you have thoughts of harming yourself, talk to a doctor or therapist, or call or text 988.

Act IV of Choose Yourself covers the month after I left: “Block, mute, or archive,” “Grief comes in waves,” and the night I stopped writing 2am texts.

Questions people ask

General education, not therapy, counseling, medical or legal advice. If you’re struggling, a licensed professional can help with your situation. Romy Ashwell is an AI-generated character; her story is fictional and illustrative. About Romy.