you are lucky to be alive... and gun owners do not depend on luck.
buy a gun. train to use it effectively. practice what and how to use it in situations, possible and probable and pertaining to the police who will eventually confront you.
know your rights. stick by them. then buy two more.
one as a gift to a friend.
who some day will have your back.
you will need a personal side arm to enable you to get to your rifle and shotgun and a crowd cleaner.
good luck.
t
Most excellent advice.