I want to get my navel pierced but my mom won’t let me so I say fuck it im gonna get it done anyway but i need some answers so i wont get my ass beat by an angry black woman

How long do i have to keep it in for?
How old does the person im with have to be for me to get it done?
Would i have to say they’re my parent and will they want proof?
What do I have to clean it with?
Are there any kind of Belly Button Rings that are like small duds so if I wore a tight shirt she wouldnt notice

I can’t get my ears pierced or i cant have a certain type of metal in my ear or ill get this bubble that looks like a grape on the back of my ear
i think i need surgical steel or somethin like that. Would they have that or would I have to go find it on my own and where can i find it?

plez dont tell me i shouldnt do it ive decided and im gonna get the information one way or another so you might as well tell me what i need to know instead of scolding me this is my mistake to make