Years ago, I went to a Star Trek convention where David Gerrold was the main guest. He wrote Trouble with Tribbles, but he also taught writing - and he took a class at the convention. At the beginning of the class, he asked who was a writer, and almost nobody put their hands up, because none of them had been professionally published. By the end of the class, he had convinced us all that we were really writers - we just hadn't been published YET.
So, I've been beavering away, writing articles for local magazines, and blogging, and secretly writing my novels - and over Easter I finally made the decision to self-publish on Smashwords. It has been such a liberating decision. I can now say I am a writer, and point to some fiction that I have written (no-one seems to thing that the blog counts towards Being a Writer!).