This is a link to a website that shows different enlaces to other sites about bullying and how to handle it -
link However if your friends are starting to bully tu too, just to be 'in the crowd' then they are not true friends and tu are better off without them.
I can't say whether you're ugly o not as i don't know what tu look like, and sure tu may not be the prettiest one in the school, but i'm certain there is one aspect of tu that is gorgeous. Have tu ever thought that these people are bullying tu because they're jealous?
tu have something they don't and they want it, and to mostrar that they are hounding tu to put tu down so low tu can't even accept yourself. Don't let them.
My consejos is that tu tell your parents, sit them down and explain that because of all the bullying and their 'it'll get better attitude' tu feel as though they don't care, that they have no time to help. If bullying doesn't get nipped in the bud once it starts then it can go on for years and years. And it can also lead to death. A dear friend of mine was bullied all the way through school, and on the last año he'd had enough and drowned himself. Because of that i've always felt the bullies had won. If tu start harming yourself, you're mostrando these bullies that what they are doing to tu is working. Try to ignore them as much as tu can as they'll get bored and stop once they know their words aren't taking effect. Go talk to your teachers, write letters to the board, ask the headmistress/master to do something. They have an obligation to stop this, i'm sure the school has a no bullying policy, so get them to use it and enforce it.
Hope everything gets sorted for tu soon, and tu need anyone to talk to i'm only a message away.