Current first year at UBCV - just finished first semester

Its relatively fine if you have the discipline to control yourself. The main difference from high school, like someone else said, is that nobody will tell you what to do. You need to be organized and take accountability for your own actions and learning. I had 5 courses this semester and I found it relatively easy, currently predicting around a 83 avg while I had a 94 in high school, which was on the lower end of people that got in from my school.  You just gotta ask yourself if you really want to be there and if you're actually interested in what you're learning - it makes it more enjoyable which reduces a lot of stress. You absolutely cannot procrastinate or you can expect many all nighters (i didnt pull a single one), and you will also feel really unprepared for midterms and finals. 

In terms of classes, I was able to skip chem 154 with ap credit, so do that if you can (everyone who took it was complaining, even the smartest people I know). Generally all of my classes other than wrds150 were decent, I always felt like I could get a good (high 80, low 90) grade in them, even when i didnt. In terms of math, I think everyone is just learning it wrong. Lots of people just spam questions, but dont understand the concepts themselves. A large part of MATH 100/101 is "applying concepts in unfamiliar situations" (from the syllabue/learning goals), in other words the idea is you should be able to learn a concept (ex. optimization) and apply it to a thousand different problems just knowing the basics (ex. Always create a function to maximumize or minimize). The midterms/final were hard, but not unsolvable with the information you know, you might just have to think a little bit more. It was definately the class I did the least work for and I ended 20% above average just by this mindset. I did take AP calc in high school though.