I was a lot like you when I was 15. Back then I had no idea who I was or who I wanted to be. Still don't.

There's thing wrong with you, though I know kids can be judgmental. I gt called a "poser" alot because one day I would dress punk, another day I'd be emo, another day I'd be decked out in holister. You can be whoever you want to be and dress however you want without having to label yourself. Just do what makes you happy and try not to stress about the little details