One of the biggest challenges any creative faces is what to make and who to make it for. How do you determine if an idea is a good fit for you, or if anyone will pay attention long enough to buy it?
Being a full-time writer doesn't necessarily equate to writing "full-time". I don't sit at my desk for eight hours every week day and pound away at the keyboard writing books and blog posts. There's a bit more complexity to running a successful blog, launching books, and operating a digital business.