I've just realized that my main story already has a couple of its aspects out there (in the published world). While its a great plot and everything, I want it to be original, and not seem like some copy of something else. I got this plot based from a dream of mine, and now I'm not sure what to do. For those who have had this dilemma, what did you do? I expect the story to twist and turn as I write it, so should I just continue writing?