I am not sure why we are kind of beating the OP up here. You can make a Reasonable
estimate of being scholastically qualified if you do an Honest Assessment
of your high school/college career. The kids who work hard everyday, take the hard classes, perform well in relation to their peers, have test scores at or above the averages, compete at a reasonable high level athletically, are involved in extracurricular activities and serve as leaders in their communities will be qualified. Each academy list a class profile and if you are in the averages of that profile without any glaring red flags you will be qualified.
The questions arise when you are on the border as @MemberLG
The harder questions revolve around your chances of an appointment. Estimating where you will fall on a nomination slate is impossible. You do not know who else you are competing against and it is impossible to know how they have performed. You see it here all the time on the Forum as candidates happen to "leave out" the areas that they have not done well in.
The bottom line to the OP, be honest with yourself and look to improve the areas that you can. You know the answers to your questions. Complete all of your application requirements and enjoy your senior year.