I honstely kinda disagree with both of the above ^
You mentioned that your foot fetish is not porn induced and that's a big difference. I also have a foot fetish(since i was born) and i'm not really positive about the possibility of getting rid of a not porn induced fetish.
I really think you should own your foot fetish like a man and learn to accept yourself. It's honestly not that bad and probably the most popular fetish out there. And seriously It's fantastic when you act on it with the right partner. I do agree that this fetish isn't healthy if it's porn induced(Like any other porn induced fetishes).
Although I would say, That This fetish is pretty dangerous *When watching porn* because it easily leads to escalating to hardcore fetishes and porn categories such as femdom,sissy, trans etc...
Avoid porn and masturbation at all cost in order to: Reset your dopamine levels, To get your libido level and attraction to women back, And to rewire your brain and yourself to your true nature and to a healthy sexuality.
Good luck!