[Kinds Of Pain Meds]

I know myself as a pretty patient person. calm and all. I am not even greedy for anything. but I have this weakness with women. you see, before I truly practiced Islam truly, I used to masturbate. I do a lot of sajdah but I am not successful enough in stopping that habit. Please, can somebody help??? Is their any dua/ surah/ prayer to help control this nafs???? I follow all these advices but nevertheless I get these whispers in my mind. It alwas disturbs me a lot. I dont like fasting very much because I am already underweight... plzzz help.... plz ask Dua for me also as i ask Dua for every Muslim...Jazakallah Khairan and thanks