I think anything can be a good essay, it’s how you tell the story. So if she can make it funny or interesting that’s great, but Sybbie is right, it’s way too easy to make this topic sound like every other kid who turned it around.
FWIW what my younger son did was write a lot of essays. It wasn’t until he wrote them that he could really see what worked and what didn’t. He learned a lot about himself in the process and really found his voice. In the end most of what he wrote actually did appear on one application or another - sometimes in abbreviated form rather than as the main essay.