You'll get over it eventually.
Truthfully, there will always be that part of you that remembers her and thinks about her once in awhile but the feeling becomes dull over time. Right now you're feeling it like a needle. Life is damaging, but there is always enough space to rebound. It's like getting cut and having a scar. You can see the mark and remember what happened but the vivid pain is no longer there and you can basically live like you did before getting cut.
Once you meet somebody new, the new things you do will replace most of the things you did with the previous girl.
As others mentioned, working harder and maybe excercising will take your mind off things, and also make you feel better. It'll also give you opportunities to meet new people
