Help me.. My life seems messed up =[?

Well, the first thing is that, i live with my dad, my mum died when i was 10 years old, i dont mind school, but the boys in my cl always take the micky out of my name ''Paula'' and im kinda deaf and i cant speak properly because i have a lisp, so they all say things like "shut up because you cant speak properly" and mime words i cant say. I really try my best, i dont do anything to them, i just get on with my work, but they all just start, if i answer a question wrong, they all take the micky. It's really getting me down, I just wish i was popular and pretty like other popular girls. Im just chubby and small, and on top of that, im jeaous of this girl, she is such a stunner and whenever i look at her i have jealousy burn through me, i just dont know what to do. You dont have to answer if you dont want too, but i just need some help. Thank you =]