Basically, you put your main character in a situation where something bad has happened, and she has to do something she doesnu2019t want to in order to fix it, with a nice ticking clock and something terrible which will happen if she doesnu2019t succeed, and you keep throwing shit at her until she learns whatever is necessary to change.If your story wonu2019t fill a novel, it may not have enough content for a full novel and you should think about a novella. Adding in extra bits to make it longer also makes it boring.