I’ve been a little lax in sending you resources and my study of Leonardo da Vinci [Yeah, as if he knows anything…] bore out how important sketching, scribbling, etc. was to his process. It was very much his way of thinking and learning. I’m guessing that somewhere in his thousands of notebook pages he also just plain loosened up with his quill pen on paper made from cloth pounded into a pulp.
So, here are a few links to nudge you toward putting pen/pencil/charcoal/lipstick/crayon to paper…
By the way–this drawing/sketching/doodling thing? Make it just for you.
Check that annoying purveyor-of-resistance, audience-looking-over-your-shoulder master of self-doubt** at the door. And if all you do is a little doodling to loosen up for your next creative project, bravo!