Am I a likable person?????

I'm kinda a loner and like it but I don't want people to hate me, I just want to have a neutral relationship (except for a few people who are really nice) To me, I'm an unlikeable person because I'm very shy and barely talk but sometimes I get over my shyness for certain people and when I act un-shy, I find that I act kinda like an @$$. I'm mostly not shy in my Geography class because we also talk about politics and I'm interested in that. I always scream in this annoying voice when I'm frustrated or angry and sometimes I scratch people (but in more of a playful way). I laugh a bit too much that it tends to get annoying and when I'm mad at someone, I act cold and distant (but sometimes they really deserve it). There are a few people that get me and I act a bit differently, I cat more fun (I'm never fun). Do you think I act @$$-like to most people when I'm not shy because I've been so shy for so long that I don't know how to act properly anymore? (I'm 14, I've been shy since I was 10) because I'm sort of over my shyness now but I still act shy because that's how people know me. I'm not sure I know how else to act so that might be why I act so badly, but maybe I'm just a rude person.): also there are 7 girls in my class and 16 boys, they're immature(the boys are) and don't like my appearance(I'm pretty sure of it). Is that why no one likes me because if that's it I'm okay with it. :-D thank you and sorry it's so long. If I didn't make anything clear, let me know.

:-D smiley face thoughts.