I assume the OP is saying that he/she didn't get into NASS but still wants to apply to USNA.
NAPS is a recruiting tool and, thus, those from states/districts/schools with no/less/little exposure to USNA tend to get the nod over extremely well qualified candidates from MD, VA, PA, etc. Or from districts/schools where lots of people have attended USNA.
If you still want to apply, follow the advice of BGO08 and start working on your application.
If you applied to NASS, you have already completed your preliminary application. If you are sufficiently competitive, you'll get a candidate number around May 1 and can then log into the CIS system to get your application started.