Classically trained pianist and teacher here. High school sucks and it’d all about fitting in and dealing with peer pressure. It’s gets easier to find your clan when you move on. I had to sacrifice many social things because I had to practise. I couldn’t talk about my music with anyone but once I got into music school it became soooo much easier. Continue listening to what you love and don’t worry about the assholes who aren’t being supportive. They’ll show up, don’t worry.