if i was u i would call the bank and talk to them about it tell them u are over 18 and u want your own seperate bank account u dont need to be under your dads account u are old enough now to get your own.
but u know if your dad got his account closed that would be kind of a good thing cuz then u can go get your own account somewhere else and u have to worry about him messing things up with your bank cuz if u had your own account they wouldnt be able to add him unless u agreed to it.

FIRST CLOSE THE ACCOUNT .... SECOND I know it is your father but file a police report .... THIRD tell him to back off ....

My father did the same thing to me and I am trying to remove a $700 power bill ....... and it is not EASY at all ..... especially when you don't know where to locate your father.