Hi Lyf_is_hard, I am gay and can remember being similarly confused when I was a teenager, but in the opposite direction to you.
Something to bear in mind about the stage of life you're in now, given the question you asked in your title 'what am I'...when you're a teenager, there are a whole heap of hormones being switched on that literally change everything: the way you think, the way your body looks, even your emotional reactions to things. It's a little bit like turning on a light when you've been in a dark room, it can be overwhelming and takes some time for your eyes to adjust - only it unfortunately goes on for a few years instead!
Try your best not to be too judgmental of your thoughts and feelings, they are what they are, and you'll eventually work out what they mean for you. They are just a part of you, are neither good or bad, and don't compel you into making any choices or decisions. That can be a helpful thing to remember for all of your thoughts and feelings, not just about this issue.