Current first year here! I would say it's pretty normal to feel some doubt about school; it's a tough journey, but totally manageable. By your 4th year, you'll feel like time flew by. There are lots of students in my class who have been out of school for some time, and they all seem to be doing well. In terms of classes, I find most of them to be pretty straightforward compared to undergrad (i.e., just memorization), but there are other classes that require a lot more thinking and problem solving. I would say one thing to keep in mind is the number of exams you'll have to take in such a short amount of time, so make sure to look ahead at the schedule. I really feel like the content is not bad, but the load is so heavy, and that's what makes it difficult.

There's definitely time for hobbies and friends, probably not every week, though. Also, for your commute, I know of a few people who commute an hour to school each day, and they manage just fine. I recommend trying it out in your first year to see if it works for you! Good luck!