PLEASE PLEASE HELP ME WITH MY HOCD!!!! :(

I'm 16 and a girl, and I'm dealing with what I think is HOCD. I don't know why these thoughts have come to me, they just did, I do believe OCD runs in my family however. I always over analyze things and get stressed a lot. These thoughts in my head are things like: You're a lesbian, stop denying it, (if I see a girl that I can see as a normal pretty woman) -you think shes hot, you want her because your a lesbian, you don't like boys, you never have. It makes me wonder about past relationships, when the thoughts come into my head it makes me very upset and stressed because I do not like these thoughts I find the thought of doing things with girls very awkward and I often cry and lose sleep and rip out my hair because of them. I try to get rid of these thoughts by trying to think regular straight thoughts I used to think of, but these uncomfortable thoughts seem to overpower my others. Even a certain smell will make me think "this is the smell of a lesbian" I must be one, I want to marry a man and with these thoughts it makes me wonder if I'm in denial of being gay and it diminishes my hopes and dreams of being married one day. I found out my cousin was a lesbian and I guess since that day I've feared I may be. Basically any straight normal thought for me I have is pushed back by a gay thought I don't want to think of. My sex drive is lower now, because literally every other thought in my head is a homosexual thought. These thoughts randomly come and go for no reason, when they go I'll find guys I really like, like this one, I was so head over heels for anything he said could make me wet. I want to have a hot boyfriend and have sex with a boy and fall in love, but I'm also very picky about who I date. I always look up signs that I may be a lesbian to see if I match, I take sexuality quizzes and always get straight or bi-curious. I've always wanted guys and only guys, I like those thoughts and they make me happy, but these thoughts make me wonder if they're lies and making me feel as if I'm in denial. I honestly fear that I may be gay, I don't want to be, these thoughts control me and I'm so scared...help me!

Source: http://hocd.supportgroups.com/sg/hocd/please-please-help-me-with-my-hocd

natalie wood van halen annalynne mccord billy the kid neville neville george lucas