Get it over and move on!
That's what you should do when your relationship is over! Maybe you're crying and whining, and maybe you're fucked up like all the time. But don't let it get so long. You have to get out!
I don't recommend you to turn the huts you feel into hatred, as some people can move on after they feel the contrary of what they previously did. Some of them. But I don't want it happen to me at least.
Do whatever that can ease off your pain. You can go out with friends, make friends and create your new atmosphere. Wipe out the haze of your ex over your new world. Or maybe you can hook up with someone you barely new. That will be relieving. As my friend once told me that basically everybody is "hungry", so get your self feed and you'll be fine. Trust me! I mean, I have no idea why it works (most times) but it does! It really works!