Need help getting past this girl I've fallen in love with

I've fallen for this girl pretty hard tbh and based on the conversations I've had with her and judging from her behavior, body language and her actions I have strong reasons to believe that she isn't interested in me. Which I am really bummed out about. She is really pretty, smart and cute. I have had strong emotions for quite a few people in my life but nothing this extreme or intense.This is different. I can't get this particular person out of my mind no matter what I do. Also it's about lust either. I don't even think about her in that way when I'm thinking of this person I just want to spend time with her and talk to her. That's all. Alas that's probably not going to happen so I need some help getting past this. I. believe if I put myself out there and talk to other people I might be able to get over her. I don't wanna be stuck up on this one person. I want to move past it but I'm having a really hard time doing so. Please help me out y'all. Talk to me. I need motivation and a little push to get out of this. If you're down to talk to me feel free to hit me up. I just have one request that you're around my age ( I'm 20 so ±2 years please)