Uh… you can proctor the SAT in high school? Pretty sure that isn’t a thing.
Stats are great. Siemens and USAMO are impressive;however, lots of the club-style ECs look padded/just for an application.
Also, those essay topics are terrible in my opinion. They are insanely stereotypical and not original at all. All three of those are very common for people to “care” about and write essays. Unless you’re really confident, I’d try to do something that hasn’t been beaten like a dead horse.
Honestly, I think you’ll get in to a few of them. I wouldn’t bet on HYPS even though I think you’re very qualified because they’re insane but the others you have a very good shot