Enjoy it. Do only as much as you're comfortable doing. It'll take around 15-20 shaves before you feel kind of comfortable with the whole process, so take your time and relish the thrill.
Also, know your blood type, and have an ambulance standing by. Just kidding. Probably.
Welcome to the dark side!!! Go WTG on the cheeks when starting out for the first few shaves. Fire up a straight shaving journal so we can follow your progression. I found everyone else's journals to be a great source of knowledge. In addition, they offer comfort and re-assurance that the "fun" you might have is not something you're doing wrong, but part of the normal learning curve.