Story a colleague told me:
He Vibe-Coded an app using Copilot or something.
Then he tried cursor, and it completely broke his project.
Now he is sad because he lost everything.

Moral of the story:
Try to understand the basics of software development, before developing software.
Using a version control would have prevented this.
Also, if an AI tells you you don’t need all those classes and wants to delete them, maybe think about it, and take a backup…