godan verb (-su), transitive verb
overthink; worry too much about; make too much of
Used when someone dwells on something excessively, often needlessly worrying or reading too much into a situation.
彼は小さな失敗を思い過ごして、夜も眠れなかった。
He overthought a small mistake and couldn't sleep at night.
そんなに思い過
You don't need to worry so much about it; it's fine.