After some thinking, I realized that Art Block is more or less a state of mind.  Its become apparent over the last few years that drawing is directly linked to my state of being.  

Such as, how tired I am, how I'm feeling emotionally, how hungry I am, etc.  

So I feel that, me becoming happier has direct correlation with my state of creativity.

When I was depressed, I tried on several occasions to draw, and everything that came out was looked horrible.  This was probably because everything I drew reflected my unhappy feelings.  And I didn't need to be reminded of this.  Thus 'Art Block'.

I have been happier since I moved in with some close friends recently, while moving away from a terrible roommate.  In return I was also drawing more frequently.


So in the end it all comes down to learning how to control my emotions and maintain a good environment.