First Breakup

Hey guys, I'm a 25 year old male that just broke up with his first girlfriend. In the past I've been with women, but it was mostly sexual, I have been a sex addict and gotten better. Well I met an amazing girl by accident and we dated for a month, I began overthinking things and worrying. I ended up breaking up with her. Since then I contacted her 2 days later and we met up Saturday, we talked from 11PM to 4AM, about life and everything. I told her my commitment issues as well as my childhood trauma that led to my sexual addiction and lack of communicating skills. She told me some of her childhood trauma. Anyways the night ended with her saying she was still angry and that she still couldn't forgive me, that I made her feel awful and embarrassed. I don't know if I should fight for her, or if I should let things be. I'm scared that I won't find another girl that will make me feel the same way. I also can't stop thinking about what it was about her that made me fall, because I still cannot figure it out.