I’m a junior in HS and am pretty swamped with work. I’m in 5 APs and 2 honors. I get up, finish some work, eat, shower, go to school for.6 hours, have track practice for two hours. So I’m not leaving school until 8 hours after I get there. I go home, take care of my dog, eat. By now it’s 5:30. Do homework and study Til 9:30-11:00. Repeat the next day. This day in and day out constant amount of work, constant pop quizzes for AP bio, apes, and APush. I don’t understand how college could be harder. It looks like everyone parties in college. I’ll be lucky if I even have time to go to a party on the weekend. My dad says its harder and you have to manage your time well but it’s not as much “work” as I have now. Would you agree with that? Because if it is more work I might have to kill myself now lol
In high school your teachers are responsible for teaching you the material.
In college, YOU are.
Most people typically take fewer classes per semester in college, but the fact that the material is often much more advanced makes it more difficult.
In HS your time is pretty much structured for you. But a successful college experience is all about mastering good time management practices.
TBH if you pick the right major and schedule yourself properly, there’s a lot more free time than in high school.OTOH if you pick the “wrong” major and/or overschedule yourself, the opposite is true. It’s still less busywork though.
The intellectual pace is still faster and more demanding though, at least if you go to a decent school.
That is an absurd schedule you have. Don’t do that to yourself in college.
It depends on your major and your college. At most colleges you will spend less time in class, but more time studying than you did in high school. If you aren’t on a sports team, you will still probably work out, but that isn’t as big a time commitment. If you do play a sport, you have to manage your time really, really well. You won’t have to feed the dog at college. 
You will find some time to socialize.
That’s an interesting point of view. It’s probably what @intparent said, depends on the major you’re taking up in college. Because others doesn’t really see college as something harder than HS some of them just enjoy it.
Time management is the killer for many students in college especially in the first year.
In high school your day is scheduled from the morning till late afternoon.
In college you may have an 830 class then nothing until the afternoon.
You have to use the time in between constructively.
In college you will not have your parents and teachers looking over your shoulder to make sure you do the work. You will have to be self motivated.
I don’t necessarily find college harder than high school - yes, it is more intellectually demanding, but I think there’s something to be said about learning something you are interested in versus learning something that the state is requiring you to learn in a set curriculum.
No one “makes” you study except you in college. How you manage that and how well you do is up to you. You are studying for the benefit to yourself.
Also, never joke about killing yourself, that isn’t a joke.
College is harder because what you do in a year long AP class is what you do in one semester in college. Also the amount of info you have to know is greater.
Good point @bopper, the pace is definitely faster. Also, you tend to get graded on far fewer things, sometimes only a midterm and final, so it can be harder to recover a lower than desired grade. Teachers don’t tend to give you “extra credit” projects to make up for grades that you aren’t satisfied with either.
Or even a quarter at college vs a semester, depending on the college.
@bodangles you said:
“In high school your teachers are responsible for teaching you the material. In college, YOU are.”
my daughter says…“wait…why are there professors then…and why is it so expensive???”
@Themommymommy Professors will give an overview and be available if you have questions. But it’s YOUR responsibility to go to class, read the book, do the problems, and ask those questions. If you sit back and wait for the information to be hand-delivered to you in the perfect way that makes everything crystal-clear…your grades might not be where you want them to be.
This is coming from a perspective of an engineering program at a large research university. Other types of schools and programs might be different, of course!
As for price…on one hand, they’re feeding and housing you and holding all those campus activities you can take advantage of. On the other hand…it definitely seems like a racket to me sometimes. 
Besides all of the above, you are also responsible for feeding yourself, cleaning your room/clothing. Plus, getting yourself to classes, and budgeting not just your time, but your finances.
The highlight, though, is that you are very independent and you learn how to cope, make new friends, talk to professors and Graduate assistants, and you learn to advocate for yourself at the college offices.
Repeats what some have mentioned, but a good overview http://www.smu.edu/Provost/ALEC/NeatStuffforNewStudents/HowIsCollegeDifferentfromHighSchool
College is not harder for everyone. It was easier for me.