I need help

I have been masterbaiting for as long as I can remember. Like I think I was 4 when I found out about it. Then later in my teenage years I found porn. It never really was an issue but now it’s really getting out of hand. Every time I lay in bed to go to sleep I get the urge. Every time I wake up I get the urge. It’s even started to affect my sexual relationship. I know don’t want to have sex as much and I’ve developed premature ejaculation. I don’t know what to do and I don’t know how to stop. Ive enabled the content blocker but my horny ass got in the habit of turning it off whenever I get the smallest urge. It got to the point where I even watch the nastiest and weirdest shit. I’ve never accomplished anything in my life so I can’t even imagine myself accomplishing quitting porn