I’d be open to using a pw manager then I read the comments here and everyone is suggesting different apps, arguing over how inconvenient one or the other it, various issues, etc. It doesn’t make me feel like taking action if everything feels sketchy.
My wife does this with index cards. I have to try to figure out what she wrote down (1? l?) and she crosses out an old one and writes the new one in a random spot so I have to study the card to find the live pw.