Here is my secret: I don’t care if I miss something. It’s not a problem if you miss a side quest or intentionally skip something (especially if you don’t enjoy it, it’s an annoying side quest). Completing a game can be quite enjoyable, but as soon as it becomes a chore or you see it as a todo list, that’s where I personally back off.
For example in TOTK, I really enjoy my time just exploring here and here. I didn’t like the abyss at first so I played 30h+ hours before starting exploring it, and now that I feel more confident, I am passing most of my time there (that’s why I have played 70h+ hours with only one dungeon completed 😅). I knew about a 4th power, but I didn’t find it until very recently. I was enjoying my time with what I got, extrapolating about what it could be, but it was not a problem not to have it.