Sub and Finishing Essay

Today we had a sub for class. We were supposed to finish writing our essay and then if we finished, peer review with someone else who is done. I didn't finish my essay in class because I'm not very good at writing essays in class, which is why I'm grateful that we are allowed to work on it before the exam day. I chose option B, which is about the evolution and effects of immigration policy over the last 100 years. I'm having a little bit of a hard time because I know what I want to say and I know I have good points, I just don't know how to put it into a nice essay and I also want it to be perfect. I currently have two paragraphs done and I'm starting my third one. There is just so many things I want to say, but they don't all belong in the essay even though they are good points. I think I'll be able to write a very good essay if I just sit down and really focus because even though I'm not to into government I do think this topic is important and interesting.