I've used creams and foot files to get rid of this very thick dark skin on my feet but it keeps coming back.

i am african american and i have this thick dark and sometimes black skin on the bottom of my feet everywhere that the skin would normally be light. it it is a very tough skin too. the more i cut it down the better it looks but it never is truly the right texture i peel of gobs of this dead skin with a callus remover and apply foot creams but this skin always starts to grow back and cover my feet it is very embarrising and i dont know what to do or how to cure it im to embarresed to go to a doctor about it and ive not worn my feet out in over 5 years. not even my children have seen my feet. i sleep in socks every night and its so uncomfortable. this thick skin is not pain full at all it just wont go away and stay away. no matter what i do it keeps coming back can anyone tell me how i can restore my feet to the shape and color and condition that they were over 5 yrs ago. this problem has really lowered my self esteem and has kept me from pursuing a relationship with the opposite