Self Confidence?

Let's start this off honestly, i have none.

I hate everything about myself, and I always wish I was someone else. Apparently my friends do too. I'm short, fat, and ugly..that's just how I see myself. I don't know how to change it. So many guys have told me how ugly I am and i never forget it.

In seventh grade, some guy told me to my face that I will never get a boyfriend because I'm ugly, fat and I have an attitude problem. Every time I think about it, I break out into tears. No matter who says it or how many times they say it, i will never believe anything different.

My best friend tells me every day what he thinks of me and we fight...everyday. Today, he snapped. He hates me and hes proving it. I just don't know what to do. I cant lie and say I believe him. I'm almost positive we wont be friends much longer and then I'll just hate myself more.