How do I convince my mom to let me paint my fingernails well she let's but not always?
Listen to mom. You have lots of time to be adult only little time to be young. Also, if you look older you may attract wrong people. Just be patient, you'll be adult soon enough.
Say it comes off and if she doesn't like it later, you can always take it off.
I would ask her for her reasons. Perhaps comment to her; "I want to understand the point you are making about this." Ask when she is not busy or preoccupied tho.
Tell her that its summer and its okay to do something "crazy" ---mine are painted. Match them with your outfit. I did royal blue today with the bikini I wore.
tell her you'll do very light colors and that you can always take it off & painting you're nails does not hurt your nails anyway fake nails will damage your nails