Congrats. Just like everyone else said, respect the car and you'll be fine. Keep a cool head. You don't have to race everyone who rides your bumper or revs next to you.
I would say join BMW CCA and take some driving schools if you get a chance. I believe they offer some defensive driving courses as well. I thought I was a good driver until my first school where I quickly learned what a bad driver I was.
And most importantly enjoy the awesome ride! =)