For those of you who find yourself declaring that you want to change your life, I offer this: you're doomed to fail if you don't get enough sleep.
Remarkably our Western way of living has so decimated our sleep schedules that annoying pontificators have made piles of dough writing books about getting a decent night's slumber. Before you rush out to get a useless self-help tome on how to close your eyes, have a look at Harvard Medical School's no nonsense take on the matter. It's really all you need to know to get back to a normal, healthy schedule of night-night.
Do you remember when the dark of night couldn't be explained and weather patterns were attributed to the Gods? Neither does anyone else. Yet somehow the diet of our Neanderthal relatives is all the rage in contemporary society. Because, you know, we can't be happy with what we have, we have to believe that we'd be happier with what we had when we had a smaller brain.
Writer's block is a myth. You either want to write or you don't. Not wanting to is usually a product of blood sugar, sleep deprivation, being hungover, or just generally languishing in a cloud of malaise. That's why I recommend cross country airplane flights to put some wind into the sails of inspiration. Being locked in an aluminum tube at 30,000 feet for five hours with all the in-flight coffee and mini bourbons that you can drink always does the trick. It's not remotely cost effective, but can you really put a price on creativity?