Scared of being denied on facebook?

I made a facebook with a different name and no pic.I am very antisocial teenager at school with very little friends.I want to add more people and become out going but I'm scared they'll deny me.I hate being denied!!!SO I don't try to make friends.I hate taking pics because I am not photogenic but i still want to try and make friends.I want to be more out gong my juniour year of highschool because I know i have potential but every one says I'm weird,awkward or creepy so thats makes me more secluded.I have several things about myself that I am very insecure about and so I dress funny in long clothing even when its hot.Once again too afraid of being judged.What should I do?I never hang out with friends or go anywhere don't have a place or friends where i feel like i belong at school.