Congrats on getting the Golden Ticket
My DD attended NAPS c/o 2024. As the Captain stated it will be around mid-May before you get any correspondence from USNA/NAPS. One thing you can do in the meantime is find the local Navy recruiter who can handle your enlistment into the Navy. NAPS requires you to enlist as an E-1 in order to pay you. So for the 10 months at NAPS you are an enlisted sailor. Don't worry - you report to the Academy two days prior to Induction day to be mustered out of the Navy. Then on Induction day you take the oath again and are back in the Navy as a USNA midshipman.
The office must have an officer assigned in order to give you the oath - many only have Chiefs and they cannot administer the oath. Other options are current or retired officers from any service (Army, Air Force, Navy, Coast Guard, etc.). If you go that route make sure they know your induction date at the recruitment office. You will need the letter from USNA/NAPS and filled out documents to enlist - also you must bring in your HS Diploma - so enlistment is after graduation for most. I bring this up as my daughter had a hard time finding a local recruitment office that would accept her - as a NAPS recruit does not add to the Chief's quota they don't care to spend the time and most do not know about NAPS - even though it is in their recruitment book.