Used to listen to this when I was in the same situation.
[ame]http://www.youtube.com/watch?v=sqp7p39Z65k[/ame]
And few other Indian songs (which you won't understand)
Well, I know what you're going through right now, but believe me, you need to just forget it and stop thinking about it.
As mRAza said, just get yourself engage in any hobby. I got myself in Web Designing & inculcated a hunger to earn $
And that's how I overcame it, although when my old college friends meet me, everything flashes infront of me, but that's life.