There will be “many” different answers to your questions. There is a book titled “The Naval Academy Candidate Book”. It served my DS & DD well. Along with their resources to the Academy itself and the book they managed to get most of their questions answered. I’m a former enlisted guy so I limit my guidance and insight to their journey. As a parent I found this forum helpful because I really tried to stay out of what they were doing. Instead of asking them questions I would come here.
Oh yea, I was good for something; I Payed for the book.
Good luck!