Choose a repeatable writing window that fits around work, family or ministry. A short session with a clear task can be more useful than a long block spent deciding what to write. Try setting a modest weekly target, such as drafting one scene, shaping a chapter section or organizing research notes.
Track progress by milestones as well as word count. Some weeks are for outlining, interviewing or revising, and those tasks move the book forward too. A flexible publishing schedule allows recovery after busy periods and keeps writing connected to a realistic plan rather than an all-or-nothing deadline.