picking feet and eating it

Hi i confess my shame in this post and this is something i have never told anyone ( i thought i was alone in this) but i pick my feet and eat it . Whenever i have a shower i cannot wait to get in my room and cut strips off my feet using nail clippers or even snip pliers this has gone on for years and its getting worse and worse some days i cannot even walk yet i do this compulsively and can t stop . I do not know why i do this to myself and will admit to enjoying this . However i do need to stop as it reaching a point where i cannot or maybe will not show my feet in public or in front of a partner and i just cannot stop. HELP HELP HELP please