What are your bad habits? How did you stop?!

What are your bad habits? How did you stop?

I have this really bad habit of biting my nails.
I´ve tried the peper on the fingernails but I like spicy foods and It doesn´t really change anything.
Putting nail polish on my nails works for awhile until they start to peel off and then it gets worse because I want to bite the polish off my nails too.

I just never really found a good way to stop biting my nails. What are your bad habits?
What have you tried to stop them?
Did it work? Why or why not?
What bad habits get on your nerves?

nail polish remover. put that all over your finger. the acholhol smell will make you stop