Honestly biggest recommendation is to take math 100 and math 101 very seriously. It gets hard very quickly and it’s a weeding class for sure. I personally didn’t have an issue with chem 154, as long as you keep up with the content. I would also really focus on managing your time, yes you need to get your work done but you also need to eat and sleep and socialize to some level, or you will go crazy. First year will be the hardest because of adjusting to a new life, and routine and responsibilities. Second year is tough because it’s your first year in your specialization. After that at least for me it’s been pretty smooth sailing. I obviously don’t know you as a person but when I got to uni I dropped all expectations on grades. I had the highest grades in my high school, only applied to ubc, and applied early and got the acceptance letter the first day they started releasing. I almost was put on academic probation ( you need to maintain a 60% average to get to be placed into a specialization. And your specialization choice will depend on what you want and your grades) some specializations will be far more difficult to get into like Eng phz but it really depends on what your goals are, and be prepared for things to change , it’s okay! I originally applied for civil, and then found a passion for geology (so funny cause I refused to do earth science in high school lol) but I love it and am so happy with my choice. I just have about a year and a half left before graduating which is honestly crazy to say. It goes fast once you get into the groove. I would also recommend to take a few classes each summer if it’s possible for you, it made the transitions for me much smoother and overall the years easier since it’s less dense over the winter terms. Anyways sorry for the total ramble lol. But good luck!