I think writer's block is a myth, in the sense that its very easy to get caught up in fear and laziness and just not write. I think, too, that often writers get it into their head that they have to work on a particular project or that it has to immediately be a work or shear irrepressible genius, and then they beat their head against the pages trying to force it all out.

If you just keep writing, just let the words -- any words -- come, then you won't get blocked. Words are always there. Our heads are full of them, we just have to not be too attached to ideas and projects that aren't working for us.