Answer:
In a summary, you are pretty much just making a glorified description of everything that happened in the story.
Remember to include all of the important factors of the story, theme, plot, character analysis, etc.
Pretend that your teacher isn't smart, and you are explaining to them what happened in the story, go into as much detail as possible, without straight up copying the story.
Have a strong intro, thesis, and conclusion.
Begin with the most powerful parts of the summary.
Start from the beginning, and go all the way to the end, try not to start in the middle of the story, and work your way up to the beginning.