Been 7 months but keep relapsing everyday

Im a 14 year old boy. I come from a very religious background (and till last year i was pretty good in my life. I knew about masturbation since the age of 11 but never masturbated due to moral and religious reasons. Until last year when curiosity got into me and i fapped for the first time. This became a regular process and i couldnt stop. Since day 1 of fapping im trying to stop this addiction. You guys are lucky, you fap to atleast ‘normal’ things. I have a fucked up femdom fetish which destroys my self confidence. I have however not watched porn yet, because i know the day i watch it its over for me. I fap to erotica or my imagination. Ive tried everything- cold showers, exercise and all the stuff. But nothing is helping me. I do not wish to live such fucked up life but i cant help it. The longest ive gone without fapping is 3 days (Ive done this multiple times 11 or 12 three days streak) but i keep relapsing. Its taking a mental effect on me. I do not know what to do next. Please provide suggestions.