Oh Jesus not again!

I hate this confusion so much, and I feel like shit about how scared I am about what I'm confused about.
When I was in fourth grade I found out what gay and lesbian meant, and since then (for six consecutive FUCKING years) I've be confused. I've always liked guys, but sometimes I think I'm a lesbian sometimes because A.) I think some girl is really hot, and I don't know whether or not I'm turned on B.) Because I don't think a certain guy is attractive C.) My mind likes to scare me.

I'm am sorry to admit that I am afraid of being anything but heterosexual. I am so sorry. I hate myself for it so much. I DO support gay rights, but I am petrified of being with, or being interested in another girl. For six YEARS I've felt this way. At this point I fear that I'm never going to have a set sexuality because I've been dealing with this for so long. I'm so sick of it. And I've heard all of the advice from "It's perfectly natural." to "Girls have a more open sexuality. They can be straight and be turned on by another female" I understand that part, but I am a stupid fucking idiot and am afraid of even thinking of girls as more than a friend.

I don't know what to do. I've tried not thinking about it, but a few months later it is my obsession for the next six months. I can't do anything to get rid of it. I've talked to shrinks about it too (not JUST that, but that is one of the topics I talk about). I'm worried sick, because there's always that stupid voice saying " you're a lesbian, just accept it." ALWAYS! So if anyone has advice I would LOVE it. Please don't say anything mean, I just want advice. I am so sorry if I offended anyone. I really am.