You can check whether that's true for you: list your best days, say plus 3R or more, and look at the result of the following day compared with your average day.
A routine some traders use after a day of plus 3R or more:
- Stop trading for that day immediately.
- Next day: normal size, and a maximum of four trades.
- Write one line in the journal about what made the day good, to keep the focus on process, not the result.
How to tell if the routine helps: compare days after big wins before and after you start it. If those days stop being among your worst, it's working.
The hardest part is stopping when everything feels easy. That's exactly when the rule matters.
What do you do the morning after a big win?