It seems to me that one of the most interesting things about God as a concept, if you decide to believe in God, is that God's ways are unknowable. And God obviously, look at the world around you, does or is responsible for some terrible, terrible, awful things. A young girl kidnapped and kept in the darkness and sexually abused. The deaths of six million Jews. A mudslide that buries a village. All of these things. If God is doing the good stuff, he's got to be doing that stuff too.
Neil GaimanThe best advice I can give on this is, once it's done, to put it away until you can read it with new eyes. Finish the short story, print it out, then put it in a drawer and write other things. When you're ready, pick it up and read it, as if you've never read it before. If there are things you aren't satisfied with as a reader, go in and fix them as a writer: that's revision.
Neil Gaiman