Lenten Promise

This year for Lent i made a hard promise.  My promise was only hard because i was tryin to give up something that has been a habit for awhile.  I gave up beatin and cracking my nail, its really hard.  However, i made some progress on my promise.  I have not beaten tmy finger nails as much.  I also have crack my fingers way less then i used to.  Im also goin to keep my promise passed Lent. I really want to quit them because they are both bad habits, and i should not do them.  So may God help me