I'm so ashamed.

I'm 16 years old, and I've been picking for as long as I can remember. Everyone always told me I should stop because I'd have scars, and now I have scars (and scabs) all over my body. During certain times in my life I have had very few scabs, but I can't remember the last time I had no scabs whatsoever. I am so ashamed and embarassed of my picking... I really care about the way I look and I feel like I could be so much prettier if I didn't have all these disgusting scabs. Recently, I started seeing a counselor about my skin-picking (and for other things as well), but it hasn't helped much so far. I'm really busy right now with school, homework, and rehearsal for the various plays & music groups I'm involved in. I feel super stressed out and anxious all the time, which results in me picking almost all day long. It's worst when I come home from school -- I just sit in my bedroom and pick almost every scab I have. I want them all to heal so badly. Every time I pick I feel so much guilt and shame; I just feel disgusted with myself. Recently, it's gotten so bad that I started bringing neosporin to school and applying it whenever I feel the need to pick, but it doesn't help as much as I thought it would. I want to stop more than anything in the world but I don't know how. I can't imagine how much better my life would be if I didn't have to worry about picking. Please help! Any advice would be much appreciated(: