Pick your battles. You want some semblance of a fun, happy relationships, so bite your tongue and fight for the stuff you actually care about.
Things I gave up on: skirt length, number of piercings, eating breakfast, playing an instrument, some awful outfits. Also she had a lot more freedom to go out than I liked BUT she had to tell me where she was and what was going on and keep life 360 on. I also provided a pretty non judgemental ear even when silently screaming.
Things I held firm on: completing school work, revising, always going to school, not bullying or being unkind to other kids, continuing to play one sport, family mealtimes.
It generally worked. She's so used to telling me everything that we have a close relationship and I've been able to help her navigate first boyfriends and friendships. Skirts are longer, clothes "comfy". She's doing well at school, is predicted good A levels, plays first team hockey and is healthy and happy.
She's still a pain in the arse occasionally but she'd probably say that about me as well.