hey new here

Hi everyone,
I'm here because I really need help on this quest of quitting masturbating a watching porn, I've tried to stop it for 3 times by myself but failed, I've been doing this for a very long time since my 16 yo, and lately something happened that really scared me and I'm to ashamed to talk about it to anyone else.
At first I wanted to quit porn and masturbation because I thought that I was doing it alot, I mean masturbating 3 to 4 times a day, and some days I found myself just surfing the internet trying to find the video, the scene, I spent so much time watching porn that it was all familiar faces and bodies and it was getting harder for me to reach an orgasm, so I just stay there, hours and hours, masturbating for a little for each new scene but never reaching an orgasm, I remenber one day after long hours when I was finally done, I went to a shower and I felt pain in my scrotum and I said to myself its not normal I really need to stop doing this but I never did.
In the last few days, I've known this girl sometime and we've been talking alot lately, and we had some, you know hot conversations, she lives near me but we haven't seen each other for awhile because of this thing happening around the world, but eventualy we found ourselves alot at her house and I was just happy, I mean she is beautifull and hot I thought I was the luckiest man that day, but I was just broken you know, when the things supposed to get hot for real, I didn't felt anything, it was just wierd and shamefull, hard to explain because it didn't make sense for me, and we tried again another day and it was worst, and it scared me when I thought that a real girl can not make me feel the same way I do when watching porn, when it supposed to be a way better.
I'm sorry if I it is a hard time reading all this I'm brazilian soo, not the best writing skills