Small and finished stories are much, much better than huge and half-done stories. Your stories might be beautiful or exciting or original, but if they’re not finished you’ve already lost most of your audience. ‘Finished’ is about the most important thing that your stories can be. Finish one story before starting the next one.
Don’t set out on some vast open-ended project on your own. If you’re doing something big, it will be much easier as a team effort. Recruit friends, or helpful people from the forums to help you out.