I'm 17, and am currently in my last few months of college before going to university. I've never been a confident person, but I was becoming livelier. However, recently I've been crying at really silly things. Like my friend will ask me how I am on msn and I'll cry about it. I know I'm worried about the whole transition into university idea, and whether I'm doing the right thing, as well as my exam grades. Also, my parents are very strict, and all I do is go to college and work. I'm not allowed to go out apart from that, so I spend all my time in my bedroom, and I do get very lonely and crave company. I find myself just staring into space, daydreaming or just randomly crying and not being able to fully explain why. And when I do, its over really pointless things. I sometimes end up so down that even when I'm in college with my friends, I struggle to become involved in conversations and instead find myself just staring at nothing and not even being able to tell anyone what I'm actually thinking about. Why is this happening and is there anything I can do to sort it out?