One one my favorite ways to get motivated and get unstuck in creating is by grabbing black ink or a marker and scribbling it on a page, then I begin doodling in the blank spaces. Another way is to pick 2 to 3 colors and I just start scribbling with the darkest color first & then I begin filling in the shapes with solid colors and or doodle. (see example)
Look at my doodle mark pages & create your own.
Watch my video on You Tube & then go play.