What do I do I can't think of anyone like me?

I'm a recently 15 year old boy. Everything was straight literally. Now I'm starting to question myself. I am a boy biologically, and I've always identified myself as a man but recently I've become aware that i relate to girls more. Guys I just sometimes don't get at all. Mentally I've always been a bit feminine but it's starting to become more prominent. And now I seem to feel like big endear instead of just a man but I'm scared. Everyone I love romantically (which is a lot since I'm poly amorous too) is not like this. I'm a lesbian I like girls but straight girls wouldn't date me because I'm a girl mentally and psychologically but lesbians might not date me because on the outside I look like a stereotypical ugly white trash kid, so I don't have the pretty factor either. What can I do?