Re: im a teenager and ive got grey hair
There are certain people who's hair looses it's pigmentation early in life. Although I understand how much it bother's you now, later in life it will give you a very distinguished look, and is very attractive.
My cousin's hair turned completely white starting in about 9th grade. He has always been the silver fox, his hair really cool looking.
Dying it is one option, but I would try to embrace it, as your signature look, be proud of yourself and your hair. As much as we all want to be the same in our younger years, when we get a little older, it's much better to be an individual.