"I think most writer's block is just not wanting to do the work. Heck, nobody really wants to work every day. But if writing is your job, you have to write. No excuses, no 'but I'm just not in the mood today.' Plumbers don't get 'plumbers block,' right?"
Writing is not a paid job for me...yet. If I'm serious about writing, I have to do the work no matter what. The excuse of "I'm just not in the mood" is too handy and too deadly. When I start using that excuse, Resistance moves in for the kill.