I Feel Like I Don't Belong

I feel like Hercules (Disney), I feel so Alien compared to everyone else. People say it's normal, but what I'm feeling can't be. Or maybe it's all in my head and I think, therefore I am. Like what if I think I'm some kind of special person I consciously and this is making me feel this way? Maybe I'm thinking too much, I feel so misunderstood. Maybe I'm just living in my head and want real people to be on my level. Or I'm just crazy.

Whatever it is it's highly distressing and makes me depressed.