It is funny, but unfortunate that no one gives you an honest and helpful answer. They believe that if you want to change, there must be something wrong with you, because the desire to change means (in their minds) that you hate yourself. You are looking to change because the foot fetish doesn't sit well with you. Your conscience and common sense tell you it is wrong. Instead of listening to your conscience, which is your friend, you listen to people who tell you that your conscience is only conditioning, and you should indulge the perversion.
Your foot fetish is caused by some type of anger from your past that may involve feet, or it simply might be a unresolved hatred toward one or both of your parents. Hatred and resentment, whether you realize it or not, is a trauma. If you hate your mother, (and you may not even realize that you hate her) it can cause you to become subject to women. This subjectivity can express itself in many ways, one of which is a foot fetish. You may have a need to worship women, so it expresses itself in a sexual attraction to their feet. If you want to kiss and lick them, then this is a sure sign. A foot has the same effect on you that genetalia has on others.
To rid yourself of the fetish, you have to take a deep look at yourself and uncover any resentment towards you mother (and father too) for failing you. When you uncover it, you become proactive in changing yourself through forgiveness. If it takes a long time, than it is because the hatred and lack of forgiveness is deep. Be patient, it takes a while to be transformed from within and to become a better person who can love more properly and freely.
I know. I am a former foot fetishist myself. Common sense tells you that there is nothing to be gained from a sexual attraction to feet. The freer you are from hatred, resentment and anger, the more independent you are in general. No one who tells you the opposite can exist without lying friends or a support group. You want to be truly independent, free and strong? Then listen your heart and do what you know is right within your heart no matter where the chips fall.
Good luck and God bless.