Periodically, okay I confess - frequently, I find myself simply spinning my wheels and not actually accomplishing much of anything. I'm fully aware that its mostly because I have acquired and practice some non-productive habits.
Hope that's not your modus operandi. But if it is, the following might be helpful:
Artist Habits of Mind
7 Habits of Highly Effective People: The Art World Edition
Studio Thinking Framework: Eight Habits of Mind
6 Habits of Highly Effective Artists
Ten Habits of Successful Artists
Overwhelmed in the Studio? Check Your Work Habits