How to get over a breakup

Me (20M) and my girlfriend (20F) just broke up. We had dated for 5 years. I am heartbroken and she is fine. I still want to talk to her in hopes of fixing things and she says she still likes to talk to me but doesn’t want a boyfriend right now. She says it’s possible that we could get together, but she doesn’t know. I feel like I need to get over her, but I don’t want to ruin my chances for the future. Also, talking to her is what makes me happy right now. I need help getting over her and also learning how to be happy by myself, and not depend on others. Any relationship advice is appreciated. I would love to hear any similar stories.