I'm UPSET!

Everybody in class seems to hate me. Whenever i tried to talk to them they don't listen to me. Whenever i do something like walking they seem to laugh and snigger. In fact they seem to laugh at every action that i do. They seem to shun me in their conversation.WHAT DO THEY THINK I AM? AN INVISIBLE CLOWN?! What is wrong with me!? Do i need to raise my voice so loudly would then they could hear me? What do i need to do to get their ATTENTION!? Then again when i don't need their attention they seem to like throwing paper balls at me! Where did i go wrong? was it my CCA? My behaviour?My hairstyle? Was it the way i talk or the way I walk? I just don't get these people. These people aren't my friends. They are a bunch of strangers!I somehow find Online Strangers more friendly than real life strangers. AT LEAST THEY TALK AND GIVE REPONSE! No one here seem to understand me..........It seems so hopeless and pathetic for me to make friends. :( :(