Bully's about stupid stuff

Sarah 💎💎👑
So I am in 7th grade and I am bisexual. I don't know how, but some people found out and have been spreading it and picking on me for it. I don't know what to do. My counseler just says 'oh you should know what you like yet' and I am to dumbfounded. I don't know where to go. Any advice?