Are you willing to do this, barter your soul for success?
"Walt Whitman notoriously wrote his own anonymous reviews, which would not be out of place today on Amazon. “An American bard at last!” he raved in 1855. “Large, proud, affectionate, eating, drinking and breeding, his costume manly and free, his face sunburnt and bearded.”
If you are a shy author, may be you might have to devise a means of making yourself known. Otherwise... mmhh.