I'm not in college yet, but I'm 80% sure that it will be significantly less stressful. Especially since a lot of it will be classes that I want to take, not ones I'm required to take (yes, there are gen ed classes, but the classes for my major and minor are gonna be great).
Haven't been to college yet, but some of you that are speaking about high school is totally different than mine. I'm allowed to choose whatever classes I feel like taking as long as I finish my credits, which is fair enough. I have more friends than I could imagine, and barely anyone judges me and pretty much the whole school knows I'm gay lol. Also, my classes are easy for the most part (except AP History ofc )
After all the dumb things about High School, I think College is much more stressful...I mean, High School is so easy! but in college you REALLY have to work hard!! and sometimes it feels like all your work is useless -.-
College.
High school is not hard, and its not that serious. College is stressful because you actually have to work for something, plus your an adult with more responsibility. HS is 7 hours but college is all day.
High School had it's share of stress, but I feel like in High School someone was always looking out for me where as in college, I feel mostly on my own.
Even tho I'm still in HS, I know that college is stressful because after that you start your adult life so basically that's your first experience as an adult.
However you get to study the things you want to study and you meet different people, making it an interesting trip.
Then again this is ATRL so half of y'all are probably in liberal arts or something. 
)