Being the Novelist-in-Residence at a riad hotel in the kasbah of an Arabic North African city is a lot like trying to write one’s memoirs on shreds of napkins in a nuthouse.
The final advantage is the same that applies in every other competitive venture. If you would like to write better than everyone else, you have to want to write better than everyone else. You must take an obsessive pride in the smallest details of your craft. And you must be willing to defend what you've written against the various middlemen--editors, agents, and publishers--whose sights may be different from yours, whose standards are not as high. Too many writers are browbeaten into settling for less than their best.
Learn to enjoy this tidying process. I don't like to write; I like to have written. But I love to rewrite. I especially like to cut: to press the DELETE key and see an unnecessary word or phrase or sentence vanish into the electricity. I like to replace a humdrum word with one that has more precision or color. I like to strengthen the transition between one sentence and another. I like to rephrase a drab sentence to give it a more pleasing rhythm or a more graceful musical line. With every small refinement I feel that I'm coming nearer to where I would like to arrive, and when I finally get there I know it was the rewriting, not the writing, that wont the game.
There may be a Nurse Ratched-like listing of things that must be done right this moment: foods that must come out of the freezer, appointments that must be canceled or made, hairs that must be tweezed. But you hold an imaginary gun to your head and make yourself stay at the desk.
I do not so much write a book as sit up with it, as with a dying friend. During visiting hours, I enter its room with dread and sympathy for its many disorders. I hold its hand and hope it will get better. This tender relationship can change in a twinkling. If you skip a visit or two, a work in progress will turn on you.