What i have to do

Hello guys,im new here and this is my first post. I have to say from the beginning,sorry for my english, im not a native speaker.
I'm 21 years old and the last 3-4 years i think i have PIED. At first,i thought i have a medical problem and went to a doctor. I've done 2 blood tests,everything was ok at my surprise,my testo ,prolactin and some other thyroid hormones. The doctor said i was ok,i shouldn't have any problem. But i have. In the past i was hard by only looking on women on the street,but now i cant remember the last time i expirienced that... All those years i pmo regularly,4-5 times per week at least,1-3 times per day on average. My penis is not working as it should,im not having erections without stimulation or fantasy. I tried to nofap a few times but i lasted the most 12-13 days...what you guys think i must do to recover?
P.S I am a virgin,i never had sex,but i think if i had the chance,it whouldn't work.
Sorry for the long porst,and my bad english.