You mean there's some other kind of parent?

I had to wait until my stepmother died before I was "free" (51 years old). Even then I was so use to being told what and how to do stuff that it took a while to adjust. My T was a bit unhappy with me when I was telling her how having my senile stepmother over to visit, she'd call me from the living room and didn't matter if I was on the toilet! I'd come running. The joke in our family was she'd say "Jump!" and our answer was supposed to be, "How high?"

I got married when I was 39 and didn't get to pick out one dang thing for my marriage; not my wedding dress or anything. My stepsister bought an entire rack of clothes for my bridesmaids dresses to make sure we had the right sizes (my niece was one of my bridesmaids) and then they took back the ones we didn't need :-) I wasn't there at the time to say whether I liked the dress or not, LOL.

Maybe treat some of it like a "joke" and go along if it doesn't hurt anything, pick your battles otherwise? See if you can't "teach" them to lighten up a bit, find some "small" unimportant thing they're insisting on and make some joke about how small it is and how they are "micromanaging" your life. People who go "too far" often have a sense of that and do it out of anxiety. If you don't have rules and answers for "everything" something untoward might happen! They are just trying to keep everything/one in their lives "safe" and don't know that's impossible because life doesn't work like that.