Congrats.
#1 Best Advice... check your mirrors. There are an insane amount of inconsiderate jerkwads on the roads. If you see them coming, you have a MUCH better chance of getting out of their way.
My Sis never was taught this (I took a paid for course, she was taught by mom) and to this day thinks I'm "psychic" when I ease up on the gas just before some *bleep* cuts me off. SO thankful my course included that very basic info... it's saved me MANY a fender bender. Hope it proves as helpful for you.
Oh, one more thing... GETTING LOST IS THE FIRST STEP TO AN ADVENTURE.
Oh... ONE more... phone books are awesome... at least the ones around here, because they have a full DETAILED map of the city in the front. Me and my Bro both carry one in our cars just in case. NO risk at all of the batteries (GPS or phone) dying on you... and should you need a tow/help you've got all the best numbers right there on hand to boot.