I'm sorry you feel unhappy. I think most people, especially young people, go through times where they are uncertain and upset about their future and social life. It's quite normal, though very unpleasant, I know:) There are two choices in such a situation: wait until you're in a better mood to realize life isn't so bad (and maybe do something you enjoy to get into a better mood) or else change something about your life to make you happier. Not so easy to do, but sometimes necessary. I completely understand your situation! Good luck!