And check with your school counselors. They should have a BGO assigned to your school. And some counselors are familiar with the process and can direct you. Others? Not so much.
Also look at USNA Official Social Medias for events /info/updates. Facebook, Instagram and Twitter (most to least active). For example, Naval Academy Admissions has an official Facebook page, and provides info about Summer Seminar applications (open now), and STEM (open soon).
And don’t forget checking out your Senator and Congressional websites for their processes for applying for their nomination.
This forum is ok to supplement your questions, but you should seek primary source info, firstly.