Is Stuyvesant High School life hard? I need a detail of everything in stuyvesant so i can prepare for it.?

Do they have swimming team? i am a seventh grader coming 8th grader in september. After i got my result in february, just say i got in, in june and august do i have to take any test or exam for the school for classes and teams before school start? Do i have to stay up late 'till 2 or 3 to finish work? Is there anyone who sleep in early time like in 9:30 or maybe 10??? thnxx and i would like to have a more enhace knowledge of Stuyvesant and it's class, club, team, teacher,environment, and sleep time .