Writing Motivation - Slaying this Dragon

I have a pretty sweet collection of cards with old school fantasy and sci-fi art on them (much like these images). I've had those cards since I was a kid, though I have no idea where I got them from. One of my favorite themes is the knight slaying the dragon. Much like the modern connotation of the biblical story of David and Goliath, the knight slaying the dragon (or really any character slaying a dragon) makes us think of situations where great foe can be conquered, usually with some bravery and hopefully some intelligence. That's kind of how I feel with my current writing work. This paper that I'm writing is my dragon. I know that I must slay this dragon. It is a great foe, but I know, somewhere inside, I am greater. Write On!