totally unfair

I've tried posting this 3 times cause I want advice but it's been removed???? What the heck... when I have anxiety and I'm alone I pick my feet off my skin and eat it ik it's totally digusting but I can't help it my feet get puffy and raw anyone do anything like this? Anyone have any ideas to stop? Anyone offer support? Plz don't judge 
Edit:
My parents know about my anxiety I have diagnosed OCD I have a therapy animal I'm 13 and I'm on meds but they knew I used to do this but I'm way to scared to tell them I do it again I don't wanna go to the hospital again I went to children's in patient three times ER 9 times and residential care for 68 days last year 
I could use some comment plz 

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