Any suggestions on how to stop a nervous, self-mutilating habit?

I have picked at both my cuticles and lips ever since I can remember. I am semi-conscious of it, sometimes. Other times I don’t even realize that I am doing it until it hurts or starts bleeding. Everyday I have a new layer of skin on my lips and it is really starting to affect their appearance- cracks and redness (which makes me want to pick even more, because they’re uneven). My cuticles bleed almost everyday, and it’s really embarassing when they start to bleed in front of someone. (one of my client’s gave me a band-aid today!) Just now, I noticed that I was biting at my lip….. Will I ever be able to stop?

Suggestions? I am really ready to s t o p.