Now, have you ever heard that a writer writes best under pressure? Or that she must find her muse in order to write her best?
It's all hogwash. And it's all true. Here's a not-so-secret secret: you write your best when you have set aside the time to write and stick to it. But you also write your best when you've tapped into your muse and are calling upon legions of creative ideas. And guess what? You can do both at the same time. (Even if you're writing on a laptop in the dance studio, while your daughter is twirling away.) (Not that I've done that.)
I've noticed something lately. The writing outcome of the days in which I feel engrossed with my story and the days in which I am merely pounding out the words are not that different. I write like I write, no matter the mood or the excitement of doing so. Why is this? I think it's because I've been writing and writing and writing for several years and have found my "ME" in my prose. I've found the little invisible thread that leads me from staring at a blank page to putting somewhat-decent words onto it. It's a novel idea (ha ha) that I can sit down and write and expect the same outcome in quality no matter my mood.
This is not to say that when I'm feeling depressed I can write every time. Or that when I'm tired, or busy, or lost in thought about a novel I've just read, I can jot down more of my story. Not always. It only happens when I commit to writing a scene or a specific number of words. And many times, I just don't commit to it and end up finding something, anything, else to do.
(It's what happened the past few days, actually.)
So, to recap:
A writer can expect the outcome in quality to be the same whether she is in "the mood" to write or not, as long as she sets aside the time for it and commits to the doing of it.