The only problem I think you might have is caring too much what "strangers" think (school peers who tease or taunt you). If you have friends you enjoy and activities you enjoy, why do you give any attention to random others? I can't imagine most people being quite so virulent on first meeting as you seem to claim. If I were to say I love "bubble gum music" (I'm 60 :-) I might expect a stranger to tease me or laugh at me, etc. but what do I care what they think? If there are were a "group" of people who know my interests and go out of their way to tease/taunt me, I'd go out of my way to play up on their teasing; I'd be loading my mouth with bubble gum while they watch, the pinker the better :-) and wearing silly, frilly teeshirts!

Wear your teeshirts proudly and if they state they think you have a sexual attraction to little girls say, "Aren't they cute!" not like you have a sexual attraction but just that you think young girls are cute (which, they are :-) Act more like a young girl yourself and act like their comments don't bother you; if you are not bothered, you're no "fun" to taunt/tease and they'll look for somebody else to bother.

But the huge, whole story you told us above, why go into so much detail? No one else needs to know your business besides yourself and your true friends! Ignoring unkind comments in a "pleasant" manner or figuring out how to "agree" with some of them, robs unpleasant people of their ammunition. If you yourself are worried about some aspect of your behavior, go see a therapist and see if a professional thinks your behavior is a problem to yourself (doesn't sound like it if your grades are doing well, etc.). If your behavior is a problem for someone else, it's their problem to let you know and figure out how the two of you can "fix" that problem.