My friend just became a cop.....im worried lol help? what can i do to calm down?

my friend just finished his training and all that to become a cop and i suport him all the way ( im younger though, im a 17 year old guy)he's pretty muh my best friend but it sitll worrys me. i meen it gets hard being a cop. its dangerous as crap dealing with those black ghetto gangsta rapper people.........with thier hate towards ( po pos) as they call them with thier large number of homies armed with machine guns and fo fo's ECT. not to mention growing up fighting. i meen if he drives in the wrong ghetto ( we live near one) he's bound to shot at big time. how can i calm my self? ( yes males friends care about each other to!)