If there is a setting to delete advertising ID (somewhere in privacy settings), do that. That will solve the most stuff and there’s not much more you can go. If you disable the ID all other apps dont know who’s data they are collecting, and google will figure out who you are anyway.
Do you really not have prepaid sim cards in the US? that you buy with 5 bucks and it lasts one year, and then you just top it up for another 5? Those carriers are really milking you good over there.