feeling down

So lately I've been figuring out who my real friends are, and who aren't. Most of my so called "friends" have just completely stopped talking to me, and it's been happening very often with other friends. I'm slowly starting to feel that there's gotta be something wrong with me as to why they don't talk to me anymore...and now I'm just feeling really insecure of myself. I don't like the way I act, I don't admire my appearance, and I'm just pretty much beginning to hate myself. I think that I'm a freak, and I think that's why I don't have many friends.... Another thing, today in my Algebra class, these girls kept calling me fat and ugly and so was this other guy... I just kinda wanted to go hide and isolate myself from everyone else...I feel so alone. I also feel as if I don't have anyone to go to when I'm down, which is why I posted a blog on here. I really need some cheering up. :C