I think you can have moderate success by copying something else but if you really want to knock it out of the park you have to do something different and take chances.
Nearly all monster stories depend for their success on Jack killing the Giant Beowulf or St. George slaying the Dragon Harry Potter triumphing over the basilisk. That is their inner grammar and the whole shape of the story leads towards it.
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As you walk in God's divine wisdom you will surely begin to see a greater measure of victory and good success in your life.