Give it time, eventually it should heal. There are another almost 7 billion people in the world so that's another almost 7 billion chances for you to be happy with someone else.
Dude, I went through the EXACT SAME thing recently. Honestly, I'm still brokened down. The only thing I can say is time will heal things, but for now, distract yourself. Watch tv, play videogames, go outside and exercise, hang out with your friends, what ever takes your mind of things. Hope this helps.