<human>: Could you distill the essence of the text into 1-3 sentences?

I'm a female student in year 12 (final year in Australia). I've been with the same group of 'friends' for a few years now but I can't handle it anymore. I had a falling out with one of them last year. I missed her so I tried to patch things up, but now it's affected everyone for some reason. While I wasn't her friend, someone else 'took my spot' and now that I'm back she feels betrayed and the behind the back bitching escalates. 

They constantly talk about me behind their back, they go out and keep it secret from me. They are all extremely immature and love attention and drama, they live on it. I just can't deal with it anymore and really want to move school, but it's not a good time for that at all. 

I've tried avoiding them, but I share classes with some of them and at times it can be comforting being with them. I'm on my wits end and don't know what to do.
<bot>: My friends are immature drama queens who bitch about me, I can no longer deal with this drama. What do I do at school to keep motivated and not feeling completely fucked over?