Multiple interest fatigue

TLDR; What are some interests/ skills you've maintained for years and how did you know what you loved/ vs liked for work, hobbies etc?

I'm not yet fully diagnosed but find the most exhausting thing for me is all the things I'm just 'kinda' interested in doing so will start work on and then inevitably stop/ run out of time for. This is worse as I am a student with societies of all types, many things that sound exciting and interesting. Also, I have some friends from these situations that I will genuinely never see again unless I do X so become socially driven to do things like a people pleaser.

For example, I am a politics student wanting to go into a journalism. I am not wanting to be a politician but a lot of other students do campaigning etc. so joined them in that as a lot of my fellow course mate friends do. Decided recently I would rather just see them in class or for a coffee afterwards though and this has changed the dynamic of friendships.

I also started getting involved with student radio after an internship I had at another radio station fell through. However, although my previous show was music based and I am doing that currently, as soon as I became known to be studying politics I was asked to host husting for student elections, do a politics quiz show etc. Feels like that's destroying my love of the thing in the first place.

I also love music as aforementioned and wanted to bartend or at least attend a lot of festivals this summer. However, I am not a drinker and just really end up getting more enjoyment off the music and atmosphere which is alien to my concert going friends which makes me feel like I'm at two different concerts when I go with them sometimes.

I'm also 'kinda' a big reader and reviewer off my own bat (think 100+ books a year). However, have struggled with bouncing between genres and I always end up overtalking about books as a hyper fixation almost which I would love to express more in a blog or real paid work but I just can't find the consistency to do so.

I got a job in finance and have an offer to continue when I graduate but keep searching for the other option honestly as I found myself both loving it also simultaneously very bored.

I really wish someone could present me with the one thing that is the worthwhile skill to focus on because otherwise I flip between things constantly and never get past basic proficiency because of that. The longest I commit to most things is a maximum of 3 months to the point it's exhausting!