mom advice: nose piercing

so.. i’m 19 years old. i have a single mom & i still live under her roof. i’ve been wanting to do my nose for the longest time & we agreed i’d wait until i got my braces off but now i mention it to my mom & she acts like it’s illegal & forbidden. i don’t know what to do, she was pregnant with me at about this point in her life & already had 1 kid. a nose ring shouldnt be such a big deal.. especially since i’m an adult . her house, her rules.. i just feel like it’s ridiculous. i’m not into drugs & i don’t do things i shouldn’t, i just want a nose ring 🤷🏻‍♀️

edit: moving out isnt an option for me at the moment. :/

BUT thanks for all the comments! i’m doing a dummy test (fake one) to see how she reacts, if all goes well & i don’t get locked out, i’ll get it this week!