If you want to be a writer--and lord, so many of us do, even when we ought to know better!--you could do a lot worse than to read this piece by Kameron Hurley.
Writing for me was never an act of courage, an act of defiance, an act of...well, much of anything. I suppose it was an act of cope. I wrote because that was what I did. When I had no hope of ever making money on my first real novel, I still wrote it anyway, because what else could I do?