I'll play, in case this is actually useful.
I'm a senior. I go to a pretty competitive public school of about 1400 students (~330 in my grade) that offers a variety of APs, although definitely not all of them. I'm in six APs and it's pretty manageable.
- AP English Literature: Usually some reading, which I just do before bed (no more than thirty minutes; averages about fifteen-ish). Essays/large assignments (~2/month) take about two to three-hour blocks of time. Tests (~2/month) require (keeping in mind that I'm lazy and am fine with Bs on the tests since I get As on all of the essays) ~10 min of studying tops (skimming author/historical info).
- AP Chemistry: Usually no homework; sometimes long problem sets that take up to three hours to complete. Tests (~4/month) probably require ~30 min to one hour of studying, although usually I don't study 'cause of the law of diminishing returns (either I'll fail or do well, depending on what kind of questions he throws at us, and studying probably wouldn't make a huge difference).
- AP Psychology: Usually no homework; sometimes assignments that take up to an hour to complete. Tests (~3/month) require ~20 min studying tops (although it'd be more like an hour if I read the chapters).
- AP Biology: Usually no homework; occasional problem sets, but fairly frequent (~4/month) tests, which require studying. ~30 min of studying max yields good scores, but if I really wanted to excel, I'd actually read the chapters, which would require about two hours of studying per test.
- AP French: Generally 10 min of homework. Tests (~4/month) require ~5 min of cursory review for me, but I think that others spend significantly more time.
- AP Calc BC/Multivariable Calc: Eh, ~10 min homework assignments, but he doesn't check them, so we don't do them. Grades are based purely on tests/quizzes (~3/month), which require some studying but nothing that can't be done the class period before in ~10 min.
- GT Intern/Mentorship: Spend 4-5 hours per week at my mentor's, and what averages out to ~30 min per week (usually concentrated in large blocks) on assignments for the class (including writing my research paper, making my display board for the science fair, etc.)
EC-wise, I lead Art Club, which is ~1.5 hours per week on average, and I generally go to Math Team, which involves ~30 minute practices most weeks and ~2.5 hour meets monthly. I'm involved in various other clubs, but these are mostly event-oriented (computer programming competitions, science competitions, etc.), so there's no steady commitment per week.
As for how I manage -- as you can see, I don't really have a lot of work. Were I a rational, responsible student, I would be getting plenty of sleep every night. However, I have a serious procrastination problem (which, yes, I acknowledge and don't correct; AWESOME I'M A GREAT HUMAN BEING). I'm not exaggerating when I say that I start my homework at about 2:00 AM on average and get to sleep at 3:00 AM. Lol. There are better days and worse days, but I really just can't bring myself to work until it's late and I go into panic mode... but even then, I stay online and distracted. Hahaha it's quiteee pathetic.
Another note: Wow, reading through this, I realize that I really do "study" this year -- a habit that I used to make fun of. ("Uhh you should be able to learn it the first time.") So keep in mind that this might be necessary with a relatively rigorous schedule. Although the fact that I sleep/daydream through my classes may have to do with it... as well as the fact that we do literally nothing in two or three of them and are expected to learn the material on our own.
But I have a 4.0 and I've gotten all As this year too? Somehow? So I guess it doesn't really matter. I mean, I should get more sleep, but whatever. Some nights I'm miserable, but sometimes there's a week (like this one!) in which I'm able to manage my time well (probably 'cause I don't
have a lot of work) and I feel very on top of things and capable. (: