It sucks man, I feel you. Cut all connection with her. If you can, get rid of as many pictures as possible. If that's too hard go hide them so you don't see them. Then start working on yourself- working out, finding hobbies, etc. You'll still think about her, but it's better this way.
I was working out - for her. So she could be proud of a boyfriend like me. And i do not want to forget her. I want to get back together. The reason for the breakup wasn't anything one can't fix. I really love her.
Doesn't work for everyone, but when I'm down just being around EW/EQ and its community helps. I get you're not as connected as you once were, but at least try be around people you enjoy. It's medicine.
I was in the same position, man. And I got back together with her. 3 months later and we were apart again. You may think it's for the best, that you love being with her, but shit doesn't heal after a breakup. I thought it did, but I ignored all my problems to be happy with her. Be strong. Fuck, even now I want to get back with my ex, though she did some bad shit that should make me hate her.