I am a nail-biter.
Help... I cannot stop picking and chewing at my nails and they look like hell. Yes, you read correctly--if you opened up a portal to hell and looked through it, you would see something that looked like my nails. I chew gum and on pencils and pens but it doesn't work! Any suggestions?
And don't try any 'willpower' crap--trust me, it DOES NOT work.