Almost all artists have rituals or habits that help them get to where they can access their creative selves. These idiosyncratic habits may not be specifically relevant to how others work, but what is relevant is the idea that every creative person must find a process whereby they gain admission to their creative side.
Over the years, I have tried to work in such a way that the image is the generative tool rather than the word. In my teaching, I experiment with this idea by taking students through a series of drawing and comics exercises that quiet their writer selves until an image takes hold.
Sometimes cartoonists who are primarily writers tinker with their scripts for so long, they become afraid to begin drawing. I encourage students to find places in their work where the drawing and writing go hand in hand.