How do I forget about someone I love?

So my (23M) girlfriend(22F) ended things with me a few weeks ago and I’m just not sure what to do now. I’m always thinking about her and want her back cuz I miss her but I know that will never happen because of the way things ended. Not trying to be mean but all my friends said I could do better looks wise but I’m not all about looks because I loved who she was as a person. It’s just hard to get her off my mind. I’ve tried keeping busy, playing video games, going drinking with friends but still she pops up in my head and I can’t stand it. Ive tried the dating apps but I have no interest in other girls I only start to think about her again. It’s not like I’m obsessed with her I just loved her a lot and she was actually the one to tell me she loved me first. I actually had one date since her just to try to get my mind off of it and all I could think about was her sitting in my car instead of the other girl. She wasn’t my only gf I’ve ever had but the way we met and how it happened was so natural and I’m scared I’ll never find someone like that again. I just want advice on what to do? How to forget about her?