If you haven't read or listened to this book yet, I highly recommend it: Daily Rituals: How Artists Work[1]
It's a collection of daily routines of many famous and prolific artists. The surprising thing about so many of the artists is that they only work 2 or 3 hours per day, then spend the rest of the day walking around, socializing, etc. But they consistently show up and put in the work and it adds up to some amazing things over time.
This reminds me of another great book about beating procrastination: The Now Habit: A Strategic Program for Overcoming Procrastination and Enjoying Guilt-Free Play[2]
In that book, the author talks about his extensive work helping graduate students complete their dissertations. I can't cover all the great points here, but when working with these students he has them create an "unschedule" where they have to schedule guilt-free play activities as the top priority. Then he actually limits the amount of work they are allowed to do on their dissertation to only a couple of hours per day. The effect is quite amazing at turning students around from dreading and avoiding their dissertation to really trying to maximize the limited time they have to work on it. And having guilt-free play lets them really disconnect from the work and have true recovery so that they have the motivation and energy to hit the project again and again every day. Seems counter-intuitive at first, but as I've applied this to different projects, it's amazing how much more I'm able to accomplish.