There's no such thing as a writer's block. If you're having trouble writing, well, pick up the pen and write. No matter what, keep that hand moving. Writing is really a physical activity.
Wherein we discover that many of the "rules" for good writing and good sex are the same: Keep your hand moving, lose control, and don't think.
It is very important to go home if you want your work to be whole. You don't have to move in with your parents again and collect a weekly allowance, but you must claim where you come from and look deep into it. Come to honor and embrace it, or at the least, accept it.
keep your hand moving
We shouldn't forget that the universe moves with us, is at our back with everything we do.
That daydreaming seemed important at the time, but when I asked my teacher Katagiri Roshi about it, he said, "Oh, it's just laziness. Get to work." But as for discipline, I don't even use that word. I think more about passion or love. What I've really learned is the way the mind moves, and how the mind works. Rather than discipline, I know how to seduce my mind.