If you need any inspirations for more stories, follow your heart and think of what Meg would go through in your version of Days of Future Past. Think of everything that gave you the idea of creating Meg and use that to write Generations. And to help with your writer's block, be creative all the time. Like daydream a lot when you're not in school or doing homework, exercise, a walk outside, anything to give you ideas for writing. Because the more you exercise for your brain, the greater and more creative your imagination will be in the long run. Good luck.