Go no contact IMMEDIATELY. AT LEAST 30 days bro. Even if she contacts you, DO NOT RESPOND. Don't text back. Your brain is wired to respond crazy to that dopamine hit associated with her. You gotta get your head together. It'll be hard I know, but trust me, your girl is in control of the situation right now. She's got the power. She knows you'll take her back if she wants. You need to go no contact ASAP for yourself. Get some of that power back. Get some of your life without her back. Find hobbies/old friends. If you haven't gotten the chance to tell her you accept the breakup, do after no contact is over. It will def put her in shock. She'll be wondering why the guy she dumped isn't paying her any mind. She's not expecting you to be that strong.
Each and everyone of us have been through breakups. We all know it's hard at first but we all know it gets better.
This. And watch the damn video I linked. ---
Let go your earthly tether. Enter the void. Empty, and become wind.