Like everyone else, there are days when I don't want to go to work. However, writing is a job like anything else.
I actually worked in the general market for many years writing steamy historical romance, and I had more freedom in the Christian market than I ever did in the general market to write about any issue that I needed to write about.
I start work by spending time in personal Bible study. Because my projects center on a question in my own faith walk, I find Bible study essential. And God gives me scriptures daily that speak to the question with which I'm struggling.