Am I cooked for University

Everyone on this subreddit has a 90+ average, while I'm here with my 85% in grade 11. I DONT want to do humanities/arts (which is probably only thing I can do with my low average). I wanna do something like life sciences or business. at UTM or Ryerson.And my poor dumb school doesn't allow us to retake courses (I got almost high 80s in everything). I don't wanna go to college, just don't like the idea of that. Am I basically cooked??