Hello. Well, it looks like I'm going to have to go back for another year of high school due to low marks. However, it is very boring and I regret not doing better because I know everything and far beyond all of the math, science, and english curricula. There were also some complications relating to my health that hindered my success. So, I'm wondering if I can go to high school and also take AP exams in various subjects to earn my credits for the first year of university. So, I know there are at least 2 calculus AP exams, can I take those and substitute it for my first 2 calculus credits and then do the same for all of the other courses I would have taken in first year university? Then can I start in second year university when I get accepted there? Are there other ways to earn university credits before graduating from high school? I am in Canada, if there is a difference, and will definitely be going to university in Canada (one day ...). Thanks for reading and any input/information is appreciated.