Hey! I also have a feet fetish since i could remember. Overall it's totally fine and normal(only if it's not porn induced) and if you learn to accept it and own it it's amazing. Also I think it's the most common fetish out there.BUT and there's a huge BUT, You should know that this fetish is really dangerous when it comes to porn though.
People who have feet fetish have more potential to escalate to femdom and some other dark categories!
Most of the feet fetish porn videos are not realistic. They are about us being submissive and becoming slaves. It's brainwashing and in no time you'll find yourself addicted to Femdom, Sissy, Cuckold and other scary categories and even lose your attraction towards girls, Hence no attraction to ass, tits and eventually you might even lose your attraction to feet.
You're young and lucky that you found Nofap at your age and you are now aware of the dangerous consequences of porn. the sooner you stop watching porn, The better. Your goal isn't about liking more vanilla stuff, Your goal is to heal your brain, rewire and live a healthy PMO free life. Quit porn and masturbation forever, For good! There's no point in coming back to what gave you so many problems.
This is totally healable IF YOU REALLY WANT IT. Remember that patience is key, It might take a while but everything is worth it and we have to give it all in our case.
you might want to read and find these articles helpful. They're both from YourBrainOnPorn.com:
1)
Is my fetish porn induced?
2)
Am I asexual?
Good luck bro!