New to this site - please help

Hello. I'm not really sure what to say, except that I need help. I feel so disgusted even admitting this, but I pick the skin off the bottom of my right foot and eat it. I don't know why I do. It's gross. My husband is the only person who knows ALL about it. My family just thinks I pick it off, but they don't know that I eat it as well. I feel like I would die if anyone else in my life knew this. Lately it's getting worse. I would always pick down to the sensitive layers, sometimes it would bleed, but I would let it heal up over the next few days or week and then start again. I sit and obsessively think about how long it will take for my foot to heal just enough so I can start picking again. Now I'm not even waiting for it to heal completely. I hobble around on my foot and sometimes can't walk on it at all. My husband says I need help. I have a psychologist that I just starting seeing and few months ago. My husband thinks I should tell her about it - the eating part too. How do you get help for this? Can you really ever stop? I'm ashamed yet get some kind of pleasure out of it. Even when it gets to the point where I know it's going to hurt, I say to myself, "Just this one little piece, then I'll stop." But I never do, until my foot starts bleeding. I only do it to my right foot. Sometimes I'll pick at the ball on my left foot, but the left is much more smoother and I can't get the layers I want. Please help me. Am I sick? Am I just weird?