How can I change when no one will allow me to change?

I live in a small town where everybody knows everybody, just about everyone I went to high school with hates me and tries to make my life miserable every chance they get. It’s been over a year since I finished school. I was an alcoholic who was extremely overly emotional and my addiction caused me to act out in bad ways like stealing drinks whenever I went to parties or having mental breakdowns or getting into fights because I became extremely defensive after years of childhood bullying. I can’t even go out in public a lot of the time because I know there’s a very good chance I’ll see some of those people. All I want to do is be better but everyone refuses to let me be better, they want me to live as who I was in high school for the rest of my life and I don’t know if there’s really anyway to escape this because I’m stuck here. I genuinely feel like the only possible way to fix this would be to hit a restart button on my life.

P.S I gave up drinking over a year ago, found a group of friends who are genuinely good people, made every change to my character possible to better myself but none of that matters because I was a neurodivergent beer thief freak in high school.