The best way to get quiet, other than the combination of extensive therapy, Prozac, and a lobotomy, is first to notice that the station is on. KFKD [K-Fucked] is on every single morning when I sit down at my desk. So I sit for a moment and then say a small prayer--please help me get out of the way so I can write what wants to be written. Sometimes ritual quiets the racket. Try it. Any number of things may work for you--an altar, for instance, or votive candles, sage smudges, small-animal sacrifices, especially now that the Supreme Court has legalized them.