3. Don’t Bite Your Nails
Do you have a habit of biting your nails? Not only are you biting away any progress you make, but your nails will look jagged and unhealthy. If you’re a regular nail-biter, it can be hard to break the habit. Try covering your fingertips with band aids. If it takes 21 days to form a habit, it should take about 21 days to break it.