How to quit a ?

Alright i need someone to answer this for me judgemental free because this is honestly ruining my life and i cannot help myself sometimes. I developed an odd about three years ago which is now consuming my life. I am striaght, but i do have a very strong giantess for women. (For anyone who dosent know what that is its an arousal to women who are 50 times the size of you) Its overtaking my life honestly. Ive gotten so into it that i find it hard getting to just normal pictures of women or thinking of ual situations with just a plain women. It has gotten so bad its creating a wall for me and its preventing me to have a normal relationship. Ive had this for a while but its getting worse of late. Ive tried quitting thinking about it or contributing towards it and i go about a week before i break. I need some serious advice without telling me to accept it because thats who i am, i want to be able to forget it and focus on finding a relationship and being normal for a change. I know there is a wayy so someone please tell me it!!!