Other sources have carried all or parts of this interview with George R.R. Martin, AKA the FKB AKA the Fantasy Kingdom Butcher, but this article from The Mary Sue gets to the writing heart of things:
GAME OF THRONES AUTHOR GEORGE R.R. MARTIN EXPERIENCES THE PAINS OF WRITING, JUST LIKE ALL OF US
by Jill Pantozzi
As a writer, I think I can safely say a lot of us put our favorite authors on a pedestal. We somehow manage to convince ourselves that just because they’re successful and prolific means they never suffer with self-doubt or writer’s block. That’s usually not the case. And now we know A Song of Ice and Fire writer George R.R. Martin is not except from the usual trials and tribulations.
So io9 did an extensive interview with Martin at Comic-Con. And I mean, extensive. They even linked from their post to the full transcript because it was too much. Anyway, some great answers were given and we found his thoughts on writing itself to be of interest. The interviewer mentioned hearing Martin doesn’t actually like writing. He replied:
Yeah. Which is not original again with me either. A lot of writers have said that. But writing is hard. I mean I sit there and work at it. Boy, there are days where I get up and say “Where the hell did my talent go? Look at this crap that I’m producing here. This is terrible. Look, I wrote this yesterday. I hate this, I hate this.” And I can see a scene in my head, and when I try to get it down in words on paper, the words are clunky, the scene is not coming across right. So frustrating. And there are days where it keeps flowing. Open the floodgates, and there it is. Pages and pages coming. Where the hell does this all come from? I don’t know.