I'm Just trying to find some answers about myself?

I know this question has been asked a lot. And the outcome is either hey are depressed or weird. Im just asking for positive responses. I'm now 17. Im in high school. I'm on the swim team. Im in choir and band. I want to go into the field of psychology when I graduate. I am just loving life. But when Im thinking at night before bed I always hink I am different from other humans. I'm not saying I'm better which I know I'm not. I'm just saying that I feel like I don't belong to the human race. I know this might sound crazy, but Im pretty sure I'm sane. I don't know if I am a hybrid of some sort or what. I'm just wondering if anyone else feels the same or has answers cause I'm kinda confused about it. Oh and please answer positively, no negative plese! :)