Progress.

As a writer, I have to measure success differently than most fields.  The truth is, writing never feels 'done.'  My writing seems to be an ever-changing expression of creativity.  Perhaps it feels different once your work is published, for it is shown to the world as a finished product.  I doubt it.  The writer's soul is hard on itself and is never finished-- never satisfied.

Perhaps this isn't entirely true of all forms of writing.  Perhaps if your avenue of writing is more concrete, such as newspaper reporting or movie reviewing, you might feel as though your work has a definite thesis- a point to accomplish.  I, on the other hand, rarely know where I'm going with my writing, until I get there.  Sometimes, I wander like a child through the woods, wondering where I will find myself in the end.