The trick is completely avoid porn, if you are jobless, go out for a walk whenever you're bored, try to fill out your idle time with productive things or things that you like but don't watch porn/ movies/series/scroll sm. Whenever you get urges get out, try to shift ur focus onto something else, if u can't take cold showers, atleast try to wash your face with cold water, soak your hands in cold water, try to focus on your diet, have a casual talk with your friends, cook or clean, whatever you do make sure you don't relapse, it's really hard to follow these for any1, but those who successfully get out of these things it'll become easy after a period of time, remember beginnings are always tough, you have to surpass them.