A common tip on drawing is to first visualize your idea clearly, before going with the pen and pencil. True that’s helpful at times, but not when your brain is operating on the mode called crazy. Like you’ve started scribbling with a dragon in mind, but I end up with an adorable kitty. It ludicrous, I know!
But I guess that makes art art, and drawing awesome. To just let your mind free, no rules, no boundaries—well there’s the margin, or end of the paper, but you get the point!