>>5 Get to know her first. You can't just like a person without knowing them. For all you know, she's nothing like you think she is.
Part of any relationship if accepting you won't always have the same interests. But if you don't have
anything in common at all, well I don't know how you will manage to go beyond being classmates. It takes time to get to know someone. Ask her out to a coffee shop perhaps? Does she like that sort of stuff? Ya gotta get to know her interests, even if you have no interest in what she likes. Then you'll see if she's really the right person for ya.
Good luck dude, you just gotta take it step by step.