I came from a district that doesn't have crazy competition (it isn't non-competitive, but it's definitely not another NY-3) and I did not make it.
I can see you are very much looking forward to go to SLE, as was I.
Here are some scenarios and my advice to you, because you will be either 1 of 2:
For candidates who are NOT SELECTED:
Okay, so you didn't make the cut. Spend your time doing something else productive like Boys/Girls State. Gamble with Governor or Nation...that will help you. Raise the bar for yourself on your standardized tests! The fact that you didn't make it means that there's probably somebody with a better score in close proximity to you...
Please, please, please...if you don't make it, do NOT let that discourage you! Applying to SLE is nothing like applying to West Point. You plug in your test scores and some other information and that's it. No physical test. No medical exam. No nomination required. SLE is a marketing tool. That's not to say that it's bad or anything because it's a fantastic opportunity and my friends loved it (also, it's a GREAT marketing tool. It does its job), but an offer to SLE is not an appointment to West Point.
For candidates who are SELECTED:
Congratulations! You made it! Now start preparing for the CFA because you'll take one there. My advice is to practice it in sequential order with the time ticking as it does in the real trial. If you don't do as well as you thought you would, or (god forbid), you're what they call a "barfer," keep training...have a ton of fun at SLE! There are kids who wanted to go who didn't get to. You will also make friends at SLE that will be in your West Point class if you receive the appointment. This is not where it ends. Do the same thing I advised a person who didn't make SLE to do. Try and find time for your Boys/Girls State program and get your standardized test scores up if you can.
I see kids get lazy after they've been accepted to SLE just as often as I see friends who didn't make it get discouraged. Thank god it does not happen to everyone. If you do make SLE, please, please, please DO NOT start slacking off because you think you're good enough to get into West Point. Kids get into West Point who didn't make SLE and kids get into SLE that don't make West Point.
It is by no means a determining factor.
I hope you will follow my advice.
Good luck! Beat Navy!