People have worse, much more harmful fetishes.
Whoever made you feel that you're wrong, have their own issues.
Fetishes are a private matter, stop discussing it with other people.
I've had ff since I was 3 or 4 and while I'm not particularly ashamed of it, it does become a problem when it comes to sex since I cannot get turned on by anything else. I'm fine with not finding a gf who would allow me to indulge in my fetish irl but I do want to be turned on by p***y and boobs so I can have sex properly (in fact my first gf was very nice about my ff and allowed me to do whatever I wanted with her feet but I still felt very awkward and couldn't get myself to indulge in my fetish so I didn't even get turned on by her feet). I might try to stop watching ff porn and start jerking off to "normal" porn and see if that helps in any way. Also I am seeing a therapist and she's fairly young and open about topics around sex so maybe I should tell her about my ff and see if she can help with it? I just wish I knew exactly what to do to help me get aroused by things other than girls' feet because I feel so alone in my endeavors to change and I have no idea if anything I do has any impact whatsoever