I had never heard of Vancouver Island University, and I used to live on Vancouver island. Turns out that it is what was formerly known as Malaspina college, a large’ish CC perched halfway up the mountain in Nanaimo, home of the Nanaimo bar and Bathtub races.
I would agree that UBC, Queens, and U of T would be a reach for the OP. As the rep of many Canadian Uni’s, especially compared to US ones, is that they are easier to get in to, but harder to stay in, I would encourage the OP to look at the lesser ranked, but still vg schools Canada has to offer. Simon Fraser in Vancouver is good, and vg when it comes to CS. Carleton, U of Ottawa, and Concordia are good schools. Western and McMaster might be a reach, but York might be a go, or Ryerson. Laurier and especially Guelph, are hidden gems, IMO.
It would help if the OP gave more details as to his course rigour, and expected course of study in college. It is very tough to get into Western’s Commerce program, McMaster’s BioMed/pre Med, Waterloo’s Engineering, etc…