daedalson

Surprised this isn't on your list: people were kind and helped me.

imho "perfectionism" itself isn't really a thing, it's a noble-sounding name we give to things that we're afraid to confront. Fear of looking foolish, fear of making other choices (and potentially choosing wrong), fear of finishing something (because as soon as you do, you open yourself to criticism / the uncertainty of the ship), etc etc.

Without knowing you personally, the strategy I suggest is to honestly think about what your perfectionism is. What's stopping you from stopping? "I need things to be perfect" is not an answer to this question, it's the smokescreen you throw up to stop yourself from asking harder, scarier questions about what this behavior is. Good luck!