Sometimes, I sit in front of a blank sketchbook page and feel that mix of thrill and sheer terror. Like, 'Yay, I can create anything!' but also, 'Oh no, (gulp) I can create anything…’ Been there? The solution will seem even scarier, but it will turn fear into freedom as you leap off a cliff called 'I Have No Idea What I'm Doing.’ Forget about trying to make the next Mona Lisa or out-Picasso Picasso. Stop dreaming you should be able to toss off a perfect copy of your favorite manga artist or...