I liked the verse you used. I think not being wise in our own eyes (being humble & trusting God) is critical. If creativity is an idol, it is easy to become overly protective of our work, as we want our creativity our way rather than what’s best.
Sometimes it seems that people forget that writing is more than sitting at a desk & thinking. One must live life with its flows of planting, harvest, & rest. To live life with people (writers & nonwriters), responsibilities, & everyday experiences.
It’s easy to see creativity as a comfort, an escape from reality. But, is reality what we need to run from, or are the lies that warp our view? If our project is to reach others where they are, should we be running from what God wants to show us?
