This will be my 3rd application for USNA and I have one more year until I graduate with my associates degree.
I would agree with 2018midmom that the more important part of your application would be the classes you take, not the degree you receive. That said, however, you must think about plan B at the same time. Take those classes that plebes would take, but would also count towards your AS/AA so that if you aren't accepted to USNA, you only have one year to complete your AS/AA.
I took plebe classes (i.e. Precalc/calc 1, physics 1/2, chemistry 1/2, freshman comp+tech writing) to show that I was capable in those classes. It didn't work, but I am able to apply again and still get my AS at the end of this AY.
Best of luck to whatever you end up doing!