NYU Stern School of Business

Hello, I am a grade 11 student, attending high school in Canada. I was born in South Korea, but moved to Canada when I was in kindergarten. Lately, I have been having a lot of questions about my future, especially with the university I want to attend. My marks are in grade 9 and 10 are not extremely high, while my grade 11 and 12 marks are extremely high (at least to me). Here are my averages:
Grade 9: 84%
Grade 10: 88%
Grade 11: 96%
Grade 12(from the 3 courses I have taken so far): 97%

Now, my grade 9 and 10 averages are significantly lower because I did not do well in certain courses, for example, I bombed grade 9 french (a mandatory course) and also grade 10 civics (another mandatory course). In grade 11, I only took courses I was interested in and as a result, my averages are significantly better. For my grade 12 marks, I have already taken 3 courses, and I know that I will be able to pull of a 97% average, or maybe even higher.

In terms of my extra curricular, I have been a part of numerous academic clubs, like the math club, science association, newspaper inc., and also I have been a part of a lot of athletic clubs, like the soccer team, baseball team and football team.

My high school is ranked fairly high at 16th in our area, which is the GTA, and I have no idea on how to calculate my GPA (weighted or unweighted, I do not know the difference between the two).

I am planning on writing my SATs and ACTs in a couple of months, and I have been studying really hard on them. I am confident that I will do well on both tests, I am not predicting that I will get perfect, but I believe that I can get a really high mark (2100 for SATs, and I am not just guessing, I am predicting this with previous practice tests etc)

I have won numerous at my school and also in other programs, including getting selected as a top candidate in a scholarship program in the field of finance. I have around 300h of volunteer hours, therefore that is not really my concern.

I am wondering about what my chances are for the Stern School of Business at NYU.

Also I am worried about how much impact my grades for grade 9 and 10 will have.

Thank you very much.