Try the fake nails :) I had them on for almost 3 weeks and when I took them off my nails were a bit weaker but they had completely changed.They were alot longer and I didn’t have the urge to bite them at all.Good luck :)

Everyone is different. Only you will know how to quit … I know that sounds cliche, but it’s true. I quit once when I had braces on my teeth. It was just entirely too painful to bite my nails with braces on. But since then, my nails are back to being short (and often bloody, gross!) except for when I wear fake nails. I made a game of it. I started buying Wal-Marts easy glue-on nail kits and made an effort to learn how to perform chores with long nails. I feel ladylike and beautiful when I succeed. That’s just how it works for me.

good luck on your own personal challenge!