I'm struggling to finish writing my third book right now. Here's what works best for me: * Know the definition of "done" from the start. Working against a mo

I'm struggling to finish writing my third book right now. Here's what works best for me: * Know the definition of "done" from the start. Working against a moving goalpost is a motivation killer. * Have a consistent way to measure and track progress (word count, features completed, etc), and graph it over time. * Break the big project into smaller, bite-sized projects. Each time you mark a small part as complete, you'll feel a sense of relief. * Make progress every day. Even if it's just a bit, it'll feel good to know that you're that much closer to finishing.