how do I get started?

Hey all, I am new here. Addicted to internet pornography since I was 10, Addicted to masturbation since I was 12.
So I have been thinking about leaving this shit forever, but always somehow managed to fail.
well I started to watch regular porn then it slowly escalated to some hard core stuffs like, zoo porn, piss and other stuffs that I regret telling.
So I am heavily addicted to masturbation, it kind of become a habit, I would masturbate to like literally anything, like if I see a hot scene in a movie, I would go to youtube to search for that particular scene to masturbate to it. If I see a hot girl, I would come to home to masturbate thinking about that girl, sometimes I masturbate even when I don't want to , like even if I have a severe fever, I would masturbate for some reason.
not only that, I would objectify every women I see on the road, like literally every women . Because of this I can never talk to women properly, have social anxiety.

well this is not my first time stop watching porn, I have been trying since I got maturity like when I was 15. I am 18 now, turning 19 next week.
Here is the problem, whenever I try to stop this shit, my penis will kind of start to give me a tingling sensation, I guess the result of continuous result of me masturbating daily for years several times a day.
It's like my penis will become some kind of a tired muscle, and when I stretch it , I will exactly feel like how I feel when I stretch a tired muscle in leg, a feel of relief, but this persistence feeling of tingleness will make me to fap again.
It will not let me to concentrate on anything, like If I am studying , I will get that tingling feeling that only go if I fapped again
I desperately want to stop , and I don't know how to do it.
currently I am suffering from hocd and pocd. well it is been hard to quit nofap especially when you are suffering from these two things. I also have a ton of false memories, and half of my time in my day will go by just thinking what memory might be real and what is not.
I would appreciate any advice.