Which is still young.
We get it: you’re proud of always being the youngest. You equate it with being brilliant.
Consider this: boarding schools want students with emotional maturity. And no, this adult has observed in your responses a certain lack of emotional maturity.
Actually, the average SAT at Concord Academy is higher than the expected SAT, based on the average SSAT, more so than some of the GLADCHEMMS, according to what has been posted in another thread.
Since CA doesn’t “teach to the test”, I can only conclude that they are actually learning something there.
Caveat about applying to Hidden Gems: they can tell if you’re only applying as a “back up”, and wouldn’t want to actually go there.
Overall, boarding school is what you make of it. Even at the schools that are not known for their academic rigor, a student can choose to find opportunities to challenge themselves.