A thought diary is for the thought that keeps coming back and keeps hurting. Not the whole busy head, one thought. You write it down, look at it fairly, and write a fairer version next to it. It is the method at the heart of CBT (cognitive behavioural therapy), and you do not need a therapist to keep one, though it sits well alongside one.
I use it when a worry diary is not enough because the same thought has dug in.
What is a thought diary?
A thought diary, sometimes called a thought record, is a table with five columns: the situation, the thought, the feeling and how strong it was, the evidence for and against the thought, and a fairer thought. Filling it in takes about ten minutes. It works because anxious thoughts feel like facts, and putting them in a column next to the actual evidence is the quickest way I know to see the gap.
the thought: anxious, 8 out of 10a fairer thought: 4 out of 10How do I keep a thought diary?
The steps are above. Here is the layout to copy out, with an example.
| What happened | What went through my head | Feeling (0 to 10) | Evidence for and against | A fairer thought | Feeling now |
|---|---|---|---|---|---|
| Sent a message at 10, nothing back by 4 | They are annoyed with me | Anxious, 8 | For: nothing. Against: they are always slow midweek; nothing was wrong when we last spoke | They are busy. If something was wrong they would say | Anxious, 4 |
The feeling rarely drops to zero. It does not need to. Eight to four is a different afternoon.
What if I cannot find a fairer thought?
Ask what you would say to a friend who told you the same thing. You would not tell them they were being silly, and you would not agree that everyone hates them. You would say the middle thing. Write the middle thing.
If nothing comes, leave the column empty and come back tomorrow. Half the work is done by getting the thought out of your head and into a box.
When is a thought diary not the right tool?
When the feeling is too big to think at all. Then it is not a thinking moment, it is a soothing moment: come back to the room with grounding or the five senses first, and do the diary later, or the next day.
And if the thoughts are about hurting yourself or not being here, please do not sit alone with a table. Talk to someone today. The helplines are at the bottom of this page.
This is educational self-help from lived experience, not therapy or medical advice. If you are getting support already, a thought diary is something a lot of therapists will be glad to see you bring in.