Homework for The year of doing the impossible.

I am having a hard time distinguishing the difference between The Brainstorm section of each quarter, The 25 actions and the Action Taken and Result pages. I listened to the beginner’s phone call, and Brooke’s video and still, I am feeling confused. Where or how can I find more of an explanation of these pages?
Also, I am wondering do I do the first quarter now and then wait until the beginning of the 2 quarter before filling that one out. When I listened to the video she stated twice that you wait until after you are finished with the first but didn’t say if you do all the quarters beforehand.