You're a legal adult. Your parents are no longer legally or financially responsible for you, and you are no longer subject to the rules and control of your parents (of course if you live under their roof, you got to follow their rules or risk being kicked out).
Eighteen (18) times.
Yes.
You can reside with as many as you like, but you can be legally married to only one of them.
what is if you did in north carolina?" i think they mean if u died. and i rly dont know
seven days
No. That is a duty and privilege of the federal government.
no no
Yes, of course, as long as it is legally registered.
No.
Personal watercraft
Yes it is ok
Not legally untill your 18.