Writing For Chocolate

In the 8th grade, our English teacher gave us an assignment to write a story about a picture. I chose a picture of the Mosque of Cordoba, and I decided I would write a book out of it. I got a list of people who wanted to be characters, I knew exactly where the plot was going to go, I just never had much motivation to write it. I wrote about a chapter for the assignment, and then stopped writing for about a year. I found it later, and decided it might benefit me to write more. I got about 15 pages into it, and then quit again. This past year, I've been adding more to it. I'm about 20 or 25 pages far into the book, and I've pretty much given up again. I was just recently telling a friend that I need a little motivation to write the book. I need someone who will give me a deadline, and agree to buy the book with chocolate. Chocolate, to me, is better than money. I could live on chocolate. Anyway...any takers? XD