I once heard in a writing course that if a word or phrase sounds too great, it probably doesn’t belong in the writing! Over the years I’ve noticed this to be true many times. And I’ve grown to be less grudging when removing them. Just because something sounds great to you doesn’t mean it fits where you used it or at all in the book. This takes time accepting, but acceptance of this fact, I believe, means growth as a writer because you are less willing to sacrifice the overall story for what sounds great that second.