How do you stop biting fingernails?

Biting your nails is a horrible habit. My mother told me that if you bite your nails and become infeted you can lose your fingertips, which scared me so much i didnt bite my nails anymore. But if you have this habit i recomend that YOU CUT YOUR NAILS SO OFTEN THAT THEYRE SO SHORT YOU CANT BITE THEM ANYMORE.

i hope this helps :]