What are my chances of getting into a Canadian University

You will not get into McGill. They only admit A/A- students, rank them according to course rigor etc, but cut anyone who isn’t at that level.
Only exception is Ag Sciences.
You DO have a shot at Food Science, which BTW is very lucrative.
Look at the cutoffs (those are NOT the average but the grades and scores of the lowest ranked student they admitted):

You have a shot at Lethbridge, Concordia, Bishop’s, Acadia, New Brunswick…
Look at the minimum threshold, 70-78: