I hate school for this reason

I’m not trying to boast or anything, but I have big boobs and a nice ass due to years of gymnastics and working out. I am fit and pretty strong, I have long, pretty hair, and I often get comments about how pretty I am though I don’t really agree. Because of all of this guys hit on me, a lot. I’ve had guys I’ve never talked to in years come up to me and hit on me, and I’ve heard guys (multiple times) making bets about who could get me first. Because of that I am often labeled a slut, or a hoe, even though I’ve never had a boyfriend. And when people find out I’ve never had a boyfriend, they immediately start calling me a lesbian. I have done nothing except turn down guys who have wanted to get with me for the wrong reasons. I’m only 14, people shouldn’t be saying these things about me. Advice?