Think I have pied

I have watched pornography since I was 11 years old, I am currently 25, I just broke up with my partner 6 months ago, we lived together 5 years, I always had a bit of erection problems, but with kisses I got up (you know what kind of kisses), after the break up we saw each other again and my friend wouldn't get up, then I let two weeks go by without fap and we had sex about 15 times in a week, I couldn't get off, then I stopped seeing her and I had a new girlfriend, with her I tried to have sex but she wouldn't get up, I even feel my p was more small than normal, so I went back to watching pornography and to see if it goes up, sent her a picture, then we tried again and my p got up a bit and we had sex for about 10 seconds twice, after that it hasn't gotten up, now that I've stopped porn I can masturbate with my mind, which I couldn't before, what do you think it is? Thanks a lot