Supervisor will ride with you for three days and fourth you're on your own. Pay close attention and take notes. Drive around the route after work and study the route (delivery/pick up points). First and foremost, I would ask your supervisor for permission to come an hour early in the morning (off the clock) to fix your load and next day airs while it's being loaded (coming in early off the clock is not allowed but if your supervisor wants you to pass, he'll pull through) this will greatly help you, trust me.
Secondly, once you get to know your time frame, you either take 30 or an hour lunch no more no less. They want to see if you're capable of doing a route with a meal logged in. This is very important. I have seen people get washed by not taking lunch thinking they're at advantage. During lunch sort your truck. If you know you won't make an air delivery or can't find it, message in and cover your butt. But this is why I say come early in the morning to check your airs and such.
Thirdly, work fast but very safely and efficient. Once you pass your thirty and make the book and unionized, post here again. I'll post a response of how not to give a fuhhhhh. Other than that, you're on your way to your progressions of making over 100k a year.