Career sustainability for the script writer

Except for a handful of playwrights and screenwriters in this country, so-called "professional" script writers are faced with an ongoing sustainability issue in their careers.

At the top of the list of goals for any writer for the stage or screen is to get his or her work produced. This, without question, is (or should be) the prime motivator for tackling time and again the task of writing one viable and producible script after another.  Needless to say, this is an arduous and long term undertaking involving total commitment and a persistent never-say-die attitude as works are released into the world and forced to face the gauntlet of the gatekeepers.  And the most legitimate (albeit oftentimes resentful) measure of "success" in the script writing arena is having those works land well received professional productions on a consistent basis.