I know, this may sound rude, but it's meant in a good way. Stop whining about it!
I'll tell you what I mean with that.
Don't be so sad about this time in life, it won't help you and you'll only get more depressed.
First, learn to be happy or at least happier if you are lonely like you are right now. I achieved it by looking at the small but simple things in life that make a big difference, than you discover how important you actually are!
So you have to be happy without friends before you can really start a friendship/relationship. If you are sad and down, no one wants to be friends with you, if they see you are improving they will, because no NT really want's a depressed friend. And I'm speaking from my own personal experience.
Also don't expect to have friends the second you are in college again. It simply doesn't work that way.
What I advise you to do is to at least take a little walk once every two days to look at the world around you, look at the nature, the animals and the people around you. Enjoy it. Don't think about how lonely you are, think about how happy you are to be able to live on this earth, or even in America! A lot of kids live in Africa and I bet they would kill for the luxury and life you have, because they hardly have any food or water.
Think about that, and than think about how your quality of life is.