How can I be happy at school?

I am not happy at school. I don't have any friend from my class but I have some outside the class. I don't like the environment of my school either. I don't have anyone to talk to most of the time. This is resulting in reduction in my interest for studies. I am an high achiever and I don't want to lose my reputation. My parents have promised by any thing in return for A+ grade in every subject and I really want a Xbox 360. Please any suggestions ?