I really need a friend right now, but no one is here for me?

I really need a friend. I feel so sad and I have no one to talk to. My parents wont let me see Paul McCartney in concert because I have to go to music camp, and I'm really sad. I just need a friend. My school has a bunch of cliques and I'm the odd one out. Does anyone have any suggestions. I really need someone to talk to?