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· 6 min read

How to stop overthinking: a 10-minute CBT method on paper

Why overthinking feels useful but rarely is, and a 10-minute method from CBT that turns a loop of thoughts into one next step, or lets it go.

You replay the conversation again. You check what you said, then what they said, then what they might have meant. An hour later you know nothing new, and you feel worse than when you started.

That is overthinking. It looks like problem-solving from the inside, which is why it is so hard to stop. This guide explains what is going on and gives you a short method you can do on paper whenever a loop starts.

Overthinking is usually one of two things

Rumination looks back. Why did I say that? Why does this always happen to me? It circles a past event or a feeling and asks why, over and over.

Worry looks forward. What if I mess up the meeting? What if they're angry? It runs through things that might go wrong.

Both feel productive. Neither usually ends in a decision. Research on rumination links it with deeper low moods, more negative thinking and worse problem-solving, not better (Nolen-Hoeksema and colleagues, 2008).

One finding is especially useful. Repetitive thinking tends to be unhelpful when it is abstract and asks why, and more helpful when it is concrete and asks how: what exactly happened, and what exactly could I do next (Watkins, 2008). The method below is built around that switch.

The 10-minute method

You need a sheet of paper or a notes app and about ten minutes. Writing matters here. A thought that is written down stops moving, and you can look at it.

1. Catch the loop in one sentence (1 minute)

Write the thought the way your mind says it, not the polished version.

I think I annoyed my manager in the meeting and now she's going to see me as difficult.

If several thoughts are fighting for space, pick the loudest one. You can do the others later.

2. Ask: can I do anything about this today? (1 minute)

This question comes from the worry tree, a tool used in CBT for anxiety. There are only two answers.

  • Yes, there's something I can do. Go to step 3.
  • No, it's out of my hands, or it's not happening yet. Go to step 4.

3. Turn "why" into "how" (3 minutes)

If you can act, stop asking why and write the smallest next step, with a time.

  • Not "Why am I so awkward in meetings?" but "How could I check how the meeting landed?"
  • Next step: Send her a two-line message tomorrow at 9: "Thanks for today, happy to go over the budget point again if useful."

A step you could do in under ten minutes is the right size. Once it is written down with a time, the loop has somewhere to go.

4. Look for a thinking trap (3 minutes)

If there's nothing to do yet, the thought usually leans on a shortcut. Check your sentence against the common ones:

  • Mind reading: "She's going to see me as difficult."
  • Fortune telling: "This will come up in my review."
  • Catastrophizing: "I've ruined it."

Then ask one fair question: What would I say to a friend who wrote this? Our guide to thinking traps has an example and a question for each of the ten most common ones. If you want the full version of this step, the CBT thought record walks through the evidence for and against the thought.

5. Hold the thought more loosely (2 minutes)

You don't have to win the argument. Write the thought again with a short phrase in front of it:

I'm having the thought that I annoyed my manager.

It's a small change, and it matters. It turns a statement about the world into something your mind produced. Acceptance and Commitment Therapy (ACT) calls this cognitive defusion. In one early study, a very simple defusion exercise, saying a word out loud over and over until it sounds like noise, made people's negative thoughts about themselves feel less upsetting and less believable, more than distraction did (Masuda and colleagues, 2004). If you like a picture to go with it, try leaves on a stream.

6. Close the page

Draw a line under what you wrote. If the thought comes back later today, you can tell it: I've already looked at you. You're on the page. If it is a worry that keeps coming back every day, give it an appointment instead of your whole evening. Worry time explains how.

When the loop starts at night

Bedtime is often the first quiet moment of the day, so thoughts that were waiting all day arrive at once. The method works in bed too, but there are a few extra tricks for night, like a five-minute to-do list before sleep. They are in our guide to racing thoughts at night.

What about the 3-3-3 rule?

You may have seen the 3-3-3 rule suggested for overthinking: name three things you can see, three sounds you can hear, and move three parts of your body. It is a grounding exercise. It's good for getting out of your head for a moment when anxiety is high, but it doesn't deal with the thought itself. Use it first if you're too wound up to write, then come back to the method above. We cover it in how to calm anxiety fast.

Small habits that make loops rarer

  • Write it down early. A thought you write in the afternoon is less likely to wake you up at 2 a.m.
  • Notice your favourite loops. Most people have two or three. Once you recognise one, it's easier to say "oh, this one again". Mapping one on a CBT triangle shows how it keeps itself going.
  • Move your body when you're stuck. A ten-minute walk won't solve the problem, but it often ends the loop long enough for you to think clearly.
  • Decide, then stop checking. Rereading old messages and checking the same thing again keeps a loop running.

When it's more than overthinking

If worry fills most of your days, if you can't sleep, or if certain thoughts feel frightening or impossible to push away, it is worth talking to a doctor. Persistent worry can be part of generalized anxiety disorder, and some repetitive, unwanted thoughts are part of OCD. Both respond well to treatment, and CBT is one of the main ones. If you feel unsafe, please contact your local emergency number or find a helpline at findahelpline.com.

The same method, as a place to sit

Leaf by Leaf turns these steps into a short ritual. In Untangle a thought you sit under an old tree and answer one plain question per page: what happened, what you told yourself, how strong the feeling is, which thinking trap might be in it, and what the evidence says. Your words settle on a leaf. At the end you rate the feeling again, and the tree lets the leaf go.

You can try all seven pages on the home page without buying anything. Nothing you write there is saved or sent.