I mean, give the kid a break. They’re working it out real-time. Should they not use spellcheck either?
OP, basically it comes down to this:
Do you understand what this place is? Based on that, why do you think it would be a good fit for you and you for it? Can you do the work? What can you add to the community?
It would help if you have more background on yourself. Are from Alaska or Peru? That would be interesting. Are you an age-level champion fencer? That would get their attention. How have you moved past whatever it is that have you trouble in 7th grade (don’t need to go chapter and verse here on that). How can you demonstrate that you understand what life at Exeter (or anyplace you apply) requires holistically and you are up to the task?
These are the things you need to work on, in my opinion. As stated earlier, some folks who look like you on paper get in, some don’t. You have to sell it and hope for some luck.