Driving a package car takes about 2 days to get comfortable with if youre not used to driving larger vehicles. Its not like driving a tractor trailer. Theres no hinge mechanism to the rear axle. Its just like driving a longer car.
How to handle accidents. Dont have any. Problem solved. Do your best to stay away from other vehicles even if it means pissing off the person/people behind you. friend 'em. You are driving for YOU, not for them. Who cares if they get upset. 5 minutes after they flick you off and yell a few obscenities at you, theyve forgotten completely about you and have moved on with their lives, and you should too. Think of your following-distance as an "investment in reaction time". The bigger the gap, the greater chance you have of making a good decision to avoid a potential accident. Especially on the interstate. You travel a pretty good distance every second at 60mph, so if you have to check your mirrors, comprehend what youre seeing, then make a decision to avoid an accident, youre gonna want some leeway.
Handle traffic. Drive as if you are the only person on the road that makes good decisions. This will help you avoid "trusting" other drivers to do the correct things. All day long we see ppl turn on a left blinker then dart right. Assume a turn signal means "something is about to happen".
Make things go smooth. If you have a good dispatcher, follow Orion. If you have a crapy dispatcher, and you have time-committed air to run, sometimes it will put deliveries that are nearby your air stops as your next stop on your way to your next time committed air stop. Ignore them. Run straight air everyday and go back to those stops when you get to their respective shelves. Chances are your truck is gonna be so blown out that you wont be able to get to them or find them anyways and all its going to do is make you have late air.