Finish the book. Until you finish a book, you don't know if you actually can, and that's so much more important than anything else. Finish it any way you can. For instance, until I realized that I didn't have to write in order, I'd never finished anything. There are no rules. Write the end first, or the middle first or bounce around. Because all those craft books and articles are great, but they won't really click for you until you can apply them to your own finished piece of work. I see too many authors polishing and repolishing the same 3 chapters for contests. The first three chapters are easy. FINISH THE BOOK!