Don’t you worry my friend, things will definitely get better. Keep an open mind for whatever comes your way, make new friends, visit new places. Try to keep yourself a bit busy, take good care of your health. Times will change, you will thank your self for keeping up. Try to meditate, keep reminding yourself that you want to feel better and are trying to do that. Shift your focus from thoughts that remind you of the past. One fine day, you Will see that it is time to move on, you will forgive him, yourself; and you will be done with that.
Lastly, maybe you already know about this but try- tell yourself as many times as possible that you love yourself more than anyone else in this world, and that you will stand up for yourself no matter what you do, and things turn out.