Note Fern's situational perfectionism, caused by:
*being told her story will be the "main event" at the next day's Fiction Forum
*being told a famous author will be there
*being labeled as "creative." Stanford psychologist Carol Dweck says that when you praise kids for attributes--by calling them, for instance, "smart" or "creative"--they freeze up, in part because they have no control over those attributes (which are vague, anyhow), and are afraid they won't be able to repeat their success. Instead, praise them for effort--for concentration, effort, strategies--and for specific results, and you'll likely motivate them to work even harder.
*note also the catastrophizing: Fern imagining the event as being disastrous. (In fact, imagining Shakespeare attending your reading and dissing you is some world-class catastrophizing! I'm actually a bit worried about the writer who came up with that script!)
If I were Fern's mom, I would remind her that:
I would also encourage her to have fun writing her story and not worry about how it will be received. But if she is anxious about the event, I would work with her to help her create options for herself. Maybe she can ask the teacher if she can:
How about it, parents! Did I get it right? Did I leave anything out? How would you support your kid if she or he were in Fern's situation?