I hope you make it through. I know how you feel :[ my ex [whom I cannot seem to get over] just got a new Girlfriend and whenever I'm online it's like 'omg I love her!' And it's like he's twisting a knife in my chest :/
I hope things get better for you I know this may sound lame but I think everyone has a period that they go through where they feel that being alone is the end of the world. A boy isn't worth it if he can't find time for you. One day it will come : ) just keep your head up.