To start off I'm 17, and will be 18 in a few months.

For my birthday I'd let to get an industrial piercing. You'd think that if I'm 18 I can do whatever but no. I still need permission...

Currently I have my lobes and two cartilage piercings. Both of which took a lot of convincing.

An industrial piercing is simply two cartilage piercing but it look "different" as my mom would say.

She's not a fan of piercings but this is something that I really would like. How can I convince her.