PIED

Hello everyone, I am 23 years old and I have been masturbating since I was 13. As i got older my urge to masturbate got more and so did the number of times I masturbated everyday. I masturbated 3-4 times everyday for the past 6-7 years. I have only had sex once when i was 17. My first and only attempt of sex was not so great because I could not get an erection. I had to use fantasy to get an erection, I lost erection a couple of times during sex but kept my erections using fantasy. The only reason I had sex was because I felt like i was getting old and needed to have sex. At that time I did not realize that my problem of not being able to get an erection was PMO. I realized that last year. I started my recovery about a year ago. My first attempt of not PMO lasted 2 months. I definitely felt better(erections were different and I got morning erections sometimes). Ever since then I have failed to get to a month without relapsing. I feel like this is IMPOSSIBLE. The urge to masturbate is just too much sometimes.
TBH I watched a video of a famous psychologist saying that once you reached the stage of fantasy from masturbating too much, it is almost impossible to heal. That has put me off a little bit!