Be settled in your life and as ordinary as the bourgeois, in order to be fierce and original in your works.

Gustave Flaubert, To Gertrude Tennant (December 25, 1876)

It's hard to find the energy and focus to be creative when your life is a mess. Before you can be productive you need to sleep well, eat well, exercise well and have good routines and social supports. See here for more on the origin of this quote.