Is it normal that i have a weird personality?

Seriously I don't know whats up with me... Ive never had many friends, I have a few but most of them are my cousins, or my other friends friend, so I only see them when I go out with them which isn't often. Im okay being alone, I do need interactions with others though and its always been hard but im getting better.
I sit at home most nights which might not be healthy but I try and go out ; swimming, gym, night classes, out with friends. I want to meet new people like me, im really quiet and worry a lot but im not bothered about going out til 3am everynight or getting wasted everynight.

I just feel like an outcast and lonely, and I want something to do but I don't know what... is it normal to be this way? I hate that my whole family judge me, I feel I should be doing more.