Me too! I am writing a book for my family about cats. I have about 20 pages done. Kind of seems short, but trust me, it took a while. What is your book about? Also, in order for you to give your book out, you'll need to revise it. That means to go back and check for grammar and spelling, you probably know that. So do that before Thursday. Just work on it as much as you can, but don't rush it. If you go TOO fast, it will be sloppy when you finish it.
If you have any other questions, just ask. Hope this helped!