Just sit down and start typing!! The wonderful thing about AC is that it is very intuitive. Once you play with it you catch on quickly. I was pretty much in the swing of it after simply playing around with it over a weekend. Begin with setting up your users and schedules. As each patient arrives (or earlier if you have the data) begin loading the demographics and then start making encounters. As you have time, begin making templates of your most used encounter types. Ideally, try to complete each encounter while you are in the room with the patient. This gets easier as you develop more templates and learn the short-cuts. Print or fax your scripts right from the rooms. Personally, I think you will be amazed at how easy it really is. As you gain some confidence with the basics, you can then experiment with ways to fit it to your own practice styles, as many of us have done here.
Anyone on the boards would be more than happy to try and answer questions as you go along or to direct you to threads which pertain to your particular questions.
Good Luck and welcome to the wonderful world of being the master of your own business!
Leslie