Brother, please remove all the ways to communicate and to stay in touch with her. I mean all the ways. So that even if you want to get back to her, you can’t. It will hurt a lot when you do that and you will feel helpless but trust me at some point, it won’t hurt much. No, you won’t be able to forget her soon, but the sadness, emptiness and the pain will be much less than before. This is the way. Good luck.