I am not special, I am unique

I keep waking up thinking of so many things. Even when I don't know what I'm thinking about, I can feel my mind being occupied by things. I can't stop thinking! I just don't know what im thinking about. 1 min I'm fine and the next min, my mind get occupied again with things I don't even know! Is it because I'm worried of all the camps or the classmate or the teachers? I don't know! I... I can't sleep, I can't do homework. I try to relax myself but I just feel like I'm going to be crazy!