What's the Hardest Thing for You as a Full Time Author?

M i m a marketing instructor for d. Wesley smiths, a business master class for authors. And i've got a over 75 titles, which includes probably forty or 50 novels and a bunch of novellsand books for children. I think joe and i are kind of odd balls in that we just do the fiction. But you never knowiif the fiction ever taints, there's always the enright of doing some other stuff.