Circle those facts. Next, look at the last paragraph. Lots of times, writers make their point again and sum it all up at the end. Make changes to what you wrote if you have to. Or, rethink your idea of what it's about.
Writers write because they have a point to make.
Writing is a lot like an argument. The writer is trying to prove something with facts. If in the end you just don't understand, don't be afraid to ask questions. There is no such thing as a wrong or right question. All rights reserved.