Writing, like sketching, can feel almost impossibly difficult. Whenever I have a spare few hours to write or draw, I'm faced with that familiar feeling that I'm sure most of you are aware of - the terror of the blank page. I call it "resistance," though I'm sure there's a better term for it. It takes an odd kind of courage to sit there, waiting, trying to think of what to write or draw. It's far easier to find yourself browsing the internet, or picking up a book - anything to avoid the agony and fear of creative work.
It's far too easy to find yourself rejecting idea after idea, either because you're afraid that you won't be able to execute it well enough, or because you think it's a dumb idea. As a result, it's easy to find yourself writing or drawing only that which you're most comfortable with, which defeats the purpose of sketching or free-writing in the first place.
On the positive side, there are a couple of ways to push through this resistance, but the biggest thing I've learned is that it's only that - resistance. If you can sit for the 10 or 20 minutes required to think of something, you get this kind of mental explosion, where the floodgates open, and all the stuff that you were thinking about has an opportunity to make itself known.
In
Drawing Words and Writing Pictures, Abel and Madden discuss this difficulty in their section on sketchbooks. They recommend drawing spirals or some such, anything that's pretty mindless and can serve as a kind of a wedge to break that dam open.
When I'm writing, I find that it depends on what I'm planning on writing. If I want to come up with a new story, I remind myself to start at the beginning, open up a new bullet point in
Workflowy (the best brainstorming and outlining and list-making program ever), and just start throwing down words. Okay okay okay okay okay, here, here, here, here, here goes. Starting at the beginning, I try and think about characters, themes, (I find that I can't easily think of a plot without these two items first), and then I just write, and try to avoid self-censoring too much.