I'm so embarred, I CAN'T go back to school!?

This weekend I went to a beach party, which my entire year level from school went to. My are fully developed which I don’t really like because it draws attention from all the guys and they always stare in the hallways. Anyway, I wore my new bikini and about half way through the party, about 5 guys ran up and tore of my entire bikini, leaving me naked! They pinned my arms to my side and shouted so that everyone looked over. Everyone crowded around and started laughing. A few people took pictures. One of the guys who had stolen my bikini groped both my s. I was almost in tears. Finally, they let me go but threw my bikini top in the boys bathroom and my bikini bottoms in a tree. I had to climb the tree and untangle the bottoms while everyone watched and cheered, then had to run into the boys bathroom and retrieve my top. A lot of guys were in there and started applauding and cheering. It was so humiliating! I ran down the beach and cried until the party was over. I don't know what to do, because I still have about 2 more months of school until holidays. I'm so scared, I really don't think I can face my clmates. Please, please, what can I do??