Establishing and keeping a routine can be even more important than having a lot of time. Inertia is the death of creativity. You have to say in the groove. When you get out of the groove, you start to dread the work, because you know it’s going to suck for a while—it’s going to suck until you get back into the flow.
The solution is really simple: Figure out what time you can carve out, what time you can steal, and stick to your routine. Do the work every day, no mater what. No holidays, no sick days. Don’t stop. What you’ll probably find is that the corollary to Parkinson’s Law is usually true: Work gets done in the time available. – Steal Like an Artist: 10 Things Nobody Told You About Being Creative by Austin Kleon