Let me tell you my story.
When I was a little kid, I was warned of ending up like you. So I began to suppress my desire towards woman in an attempt to stamp out the lust that I would eventually develop. Lust, to me, seemed like the worst sin in the world. I didn't even understand what sex was. I had a lot of other issues that messed with my confidence and developing sexual identity, but moving on.
Fast forward to puberty, and I'm pre-dominantly gay.
Now what?
Well, I proved you can manipulate your own attractions by the way you think.
My advice to you is to begin to de-sexualize women. Before you think about a woman's beauty, think about her purity as her defining trait. Women can be ugly and undesirable. But a woman's most shining trait is her clear outlook on life. Many women have wonderful personalities and a light tenderness that doesn't exist in the hearts of men. I relate to women not because I'm gay, but because my identity of being a confident human being and a man has been crushed so hard that I need someone soft and understanding to relate to.
While men can be seen as moon-like figures that are seethed in monotonous, emotional darkness and gray, women can be seen as bright suns. They illuminate the souls of those near them, and they are often bright and vibrant, even in sadness.
Begin to turn off your own sexual attraction. It is a distraction that has even caused death and war, and I'm pretty sure that no one wants to create violence and destruction that is ugly and unproductive. Instead, focus on love--love is not getting hard to feeling butterflies in your stomach. Love is the devotion and drive to protect others and to ensure their well-being. It is the thing that causes people to give up their lives for each other.
You will not surpress your sexuality--rather, you will develop love, and from there, the body's demands will follow. Live your live with your heart, not the upside-down heart-shaped headed worm between your legs.
To me, love is so much more pure and powerful than romance, and lust has no place in a heart.
http://en.wikipedia.org/wiki/Greek_words_for_love
Agape is what humanity should strive for.