No one gets it perfect, much less the first time. Well, except Mozart. But as writers, we should accept the whole idea of editing our work and see it as being as integral a part of our writing as the story itself.
Here, then, is my hard-earned wisdom (ahem) on getting rid of what's unnecessary, and an example of how I cut the fat. So to speak. Or write. Yes, I need to stop adding non-sentences now.