Wow, my high school is on HN!
IMSA was an amazing place. There are so many smart people with so much motivation and it feels like anything is possible there. There is a dark side, though, not often mentioned publicly. Mental health issues are quite common, as could be expected when you put 14-18 year olds in a highly stressful, high-pressure environment, and people generally aren't very physically healthy, either (4.5 hours of sleep a night is common). I had some of my best times and worst times at IMSA.