Detailed story of a 24 year old virgin who is addicted to hardcore anal sex

Hello everybody,

here I want to share my story and my goals.
I am 24 now and started watching porn at 13 or 14. The only kind of porn I ever masturbated to was anal sex. The porn got more hardcore over time. Since a few years it also became important to me that the male performers have big dicks, probably making me a bit ashamed of my normal sized penis.

This year I wanted to have sex with a hooker to see how this unknown situation feels for me, and I found out I cannot get an erection. I went to a hooker once more and tried to have sex with a girl three times this year, always unable to get an erection (except when rubbing my dick against her ass lol, but when I wanted to start normal intercourse, the erection quickly vanished).

The consequence of having this extreme ass/anal fetish is that I don't find vaginas sexually appealing at all, even though I am 100% heterosexual. it even feels uncomfortable looking at a vagina.

I am trying to stay away from porn for a very long time now without succes. It took me many month until I was able to not masturbate for seven days in a row, but I think this was lucky because I didn't really get horny during that time.
I never managed to not masturbate when I got really horny, even though I am trying this for about a year.
It feels almost impossible to me to supress my sexuality, I always end up in this trance state where I forget all my ambitions.

I am not sure which goal I should set for myself. A 90 day reboot would be awesome but feels almost impossible. I also thought about forcing myself to masturbate to pictures of a vagina for example, to try and rewire my sexual preference. Any ideas?

I hope you guys have some motivation and tips for me so I can finally start healing my sexuality.

Best regards,
Leon