Now Ben Myers has written this wonderful post on the writing life and I recommend you check it out.
I still struggle with this aspect of writing:
4. Writing and discipline. The self has a tendency to leak and dribble. Left to itself, it loses all definition, becomes a shapeless puddle. Writing, like ritual, is a cast into which the self is poured. Writing is care of the self. ‘He who would not be frustrate of his hope to write well hereafter in laudable things, ought himself to be a true poem’ (Milton). A book is a few seconds of inspiration plus a few years – or a lifetime – of discipline. You cannot have a campfire without the first spark, but the spark is useless without the slow labour of gathering wood, building the fire, and maintaining it when it begins to die.