First things first, be successful at NAPS in every evaluated area, including academics.
By the time you finish NAPS, your instructors will likely know what you’ll place into at USNA. NAPS courses are focused prep but are not equivalent to USNA college Physics. USNA Chem and Calc are called the Plebe-Killers. Youngsters (3/C) typically take Physics, and that one can be brutal. The Plebe syllabus is laid out at USNA.edu. Focus on what’s immediately in front of you for the next year, so you can earn your appointment.
If you want to get ahead of your matrix down the road, you can take voluntary summer school during one of your 3-week leave blocks. That gives you breathing room credit-wise during the regular ac year, might provide room for a minor, etc. Time enough to learn about that.
Now go PT and enjoy your freedom!