If you publish every day, you have these three benefits.
You reflect every day.
What you publish is a combination of what you are, what you do/think and your creation skills. Looking at those domains is clarifying.
On starting a routine: Ten days is an acquaintance, 30 days is a commitment and after 100 days it has the potential to stay for a lifetime.
You grow every day.
Reflection provides you with the opportunity to do something with what you discover within the process. Moving into uncmmon grounds every day creates your personal platform and structure for growth.
You create a track record of work.
The key to mastering work, is putting in consistent effort and emotional labor. You publish a piece every day, the publishing gets easier once you do this so often and you get comfortable with the tension of your work around. Publishing becomes your habit and your creations are the continuous proof of your work.