Deathgrip or ED?

So my situation is that i can have sex almost always but every now and them im limp. Moreover i go soft very quikly and especialy when changing positions, i used to watch alot of porn and spend hours in sex chatrooms but these are in the past. I am 100% addicted to mastrubating and have been doing it since i was like 11 for 2-3 times a day. I am 23 now.

Can anyone help my diagnose me? I dont have an partner but have someone a have sex with every 2 weeks or so.

 

Im afraid that deep
Down i know that this is the answer but i can remove porn from
My life and i can bloody do my best with mastrubating but the sex would mean that i lose the girl i like. Shitty situation but my kind regards for the answer