I began writing seriously tomorrow, four months ago. I know this because I have a journal that I started on that date, as well as a text file of an idea I was trying to develop.
The journal got 5 more entries, I started blogging somewhere in that time frame as well. The folder labeled "story ideas" with that first text file, labeled "story ideas", eventually became my idea bank, and it now has 188 entries. This number doesn't include the ideas I have already written stories from, or the actual usable ideas in the "good ideas folder".
I blogged off and on until a little more than a month ago, when I began the Daily Blogging Challenge. I haven't missed a day since.
I have completed 13 short stories, one drabble, and one flash fiction piece since then. I have six more stories in various stages of completion, as well as two novels in progress, and one more novel that is at the planning stage.
I have a spreadsheet to keep track of my stories and the markets they are submitted to. I have submitted to various markets 29 times, and received 18 rejections. Two of those, from minor markets, have been personalized. I have not made any sales, yet.
I have more fiction available for sale at this point than markets to send my work too. Also, some of my earlier stories have been rejected by nearly every professional market they are suited towards. I launched my first ebook, a fantasy novelette name Tes-Nin's Elbows. It has been downloaded a whopping thirty times in the last week. Baby steps. Baby steps.