I actually did some writing tonight for the first time in probably 9 months or so.
There was a time when I was convinced I was going to write for a living. That was before I found out just how ridiculously hard it is to discipline yourself to do it.. even at my most prolific late in college, I STILL couldn't get myself to sit still and just write EVERY DAY the way you need to if you really want to call yourself a writer. People claim that they're going to "get serious about their writing" the same way they claim that they're going to start going to the gym on a regular basis.. they think they mean it, but very few are ever going to make or take the time for it.
It's why, even though I may not like authors like John Grisham or Tom Clancy, I still have immense respect for anyone who has the discipline to sit down and write a book from beginning to end. Anyone who thinks writing isn't hard work should try to make a living off of it for a year; I guarantee that would change their attitude pretty quickly.