I am scared

So I am a virgin foot fetish guy and now I have a crisis of the fact that what if I when I have sex I wont wanna have foot sex and I will not be a foot guy any more I spent all my years being a foot guy dreaming of having foot sex what if when I have it I dont like it and I will be left in dissapointement Thats a big fear I have right now and I dont know how to cope with it how do I make sure I am a real foot guy and not just imagining but when It happens I wont feel excited