when i was little i used to tear my finger nails... so, my mom, wanting me to stop, told me "Every time you want to tear your nails give me a hug instead."

It worked, and I quit tearing my nails.

So, what i'm recommending you do is... find something you could do in place of licking your lips or biting your nails whenever you feel like doing one of those things. When you start to lick your lips, bite your tongue (LoL) or just find something else you could do to distract yourself from licking your lips. Every time you bring your fingers up to your mouth, stop yourself and do some push-ups er something. Distraction is the key

.......i think.
LoL Peace