How do I politely distance myself from my friends next year?

We're all going to a new school next year and well... most of the people Im friends with at school I dont really like that much. I just hang with them because we're all like in the same social group. Theyre pretty good friends but they like to make fun of me, which makes me feel bad about myself. Since we'll all be in a new school I kind of want a fresh start, to start being more outgoing and have better friends. But I cant just say "Let's not hang out as much this year" when the time comes, and I have a feeling theyll all just glom onto me in cles if they cant find anyone else.