[Mallika]

Hi there,

I have this habit too. I agree with the above users that using a flavoured lip balm or chapstick helps. Because the lips tend to get slippery, it becomes harder to bite it.

If you feel you're getting stressed over something, it helps to take a short break from whatever you're at and turn your attention to something else that will make you feel calmer. That might in turn assist with preventing you from biting your lips.

Good luck!