To start out organized, write an outline of your review, find some key points on what you found was most interesting and what wasnt, then brainstorm some ideas(this was supposed to go 1st) on what you didnt understand and what are some possible solutions, then walla, you should have a buch of keypoints, just put those keypoints together, some other ideas is just write anything you learned new, and if you ever get stuck, just retrace your steps...
also, an outline should go after your brainstorming because the outline is what you want to write in your review(ex. In my 1st sentence Im going to write about how I learned that the world will end in 3 yrs.), then when your done with the outline, start writing your review