Fetish addiction. It how can i do that?

Hi doctors I'm an 18 year old boy in my whole life i have never known of fetish porn and never like it but when i was 17 i saw a fetish porn video first i got disgusted but by time i began to enjoy until one day i watched a normal sex porn video and i couldn't get aroused at all by it i realised that i can get hard by fetish porn but not normal porn then i started a no fap i didn't watch fetish porn for nearly 80 days but one day when i was watching normal porn i relapsed ending watching a fetish porn since then i tried 2 times to no fap i lost my question is what can i do to become normal again because i really want to get rid of this addiction and feeling or even if i cant cure it 100 percent i want to reduce it how can i do that?