How does one quit being horny?

I can't stop thinking about sex!!!! This sexual peak thing is frustrating. It gets cold, my nipples get hard, I am ready for action!!!! I sit the wrong way, I am ready for action. God has given me a cruel fate and I can't take it anymore. I have been frequenting dirty picture sites (free, I ain't paying for porn). My poor husband is worn out. I don't know what to do about this. How do you get rid of horniness?