It’s a funny phrase, “Be yourself.” How can you not be yourself?
I like the phrase “being yourself on purpose.” I’m going to be myself, the good and the bad, but if I intend to be myself, I can highlight the good.
One way to be yourself on purpose is to find the routine that is you and stick to it. Routine is the secret to better writing. Find a time that you can write every day. I wrote my first novel on a half hour bus commute. I wrote my second novel by waking up an hour earlier each morning. I write my journalism assignments by setting my own deadlines, well ahead of the deadline assigned by the editor, whenever possible.
Play around with it, and stick with the routine that works best. Many writers think they have a complicated psychological reason for “writer’s block” when the problem is simple: they’ve changed their routine or haven’t found the right one. If you haven’t found your routine, ask yourself, When do you think about your writing project? Just before you go to bed? In the morning when you wake up? Or after your shower and breakfast? Be attentive to the details and create forty minutes close to that time.