Conventional creativity tells us that inspiration and work should come in bursts. Not according to schedule, but randomly or whenever the artist feels like it.
Instead, a more controlled and less elusive way to build creativity is to treat it as a skill. A skill can be improved through practice over time.
Driving is a skill. So is playing basketball, cooking, and playing the piano.
If we want to treat creativity as a skill, we have to come back to our practice day in and day out.