Writing can be very much like painting a shed. It’s easy to get really into the job, do it as thoroughly as you’ve done anything in your life, and then step back to see that you’ve missed a spot or five. When you’re painting a shed, however, it’s a simple matter to step back ten or twenty feet and squint at it. You can’t quite do the same thing with a written story.
Many writers find that they miss some big mistakes when they edit their own work. This isn’t actually due to sloppiness or laziness, but rather due to the fact that writers get to know their work very well when they’re writing it. In fact, they know it so well that they can understand what’s going on even if their writing doesn’t actually convey it clearly. It’s easy to skip over a logical leap or a small plot hole when you have a creator’s familiarity with the story.
For some writers, the solution to this problem is to share the story with someone else. I myself have a few colleagues with whom I’ll trade work when it needs to be edited in a hurry. However, we can’t always do that, and sometimes we just need our own perspective for whatever reason. In these circumstances, the best thing you can do is take a break from your story and work on something else. It could be another story, or it could be the backyard – the important thing is that you distract yourself until your mind has loosened its grip on the story’s details.
When you return from this break, prepare to be mildly confused by your own writing. There will be a sentence here or there that mystifies you. There will be a piece of vital information missing when you’d sworn you’d written it down. There will be glaring grammatical errors that you don’t know how you missed. But, take heart – now that you can see the spots you missed in your first edit, you can fix them.