I have a chapter due on Sunday: 5000 words. I've written 3000 so far, but the problem is: I hate them.
I've compared writing a book to having a child before (because it really is a very fair comparison, right guys? Book = baby. Totally the same thing). Much like with a child, you can't just throw out the thing you created and start over, that would be much too painful and hard and... messy. So you've got to work with what you have to make it the best possible little creation it can be. With that in mind, here is some advice (based on my recent experience) on what to do when you hate your chapter:
1. Avoid it. Don't open the document. Don't think about it. Just pretend it doesn't exist.
2. Spend the day writing 1500 words on a completely unrelated topic that has nothing to do with your book. That's called being productive.
3. Blog about it. (Also known as "being productive").
4. Pick up extra shifts at your day job. You can't write if you don't have time.
5. Write bits and pieces of other chapters. Now you have three unfinished chapters you can't submit, but three is better than one, right?
I've found all these five points to be extremely effective in combatting Chapter Hatred, but the next point is really the most important of all...
6. Remember this:
"The first draft of anything is shit." -- Ernest Hemmingway