Get the degree first, that's your priority. It doesn't really matter what the degree is in but if you're serious about aviation, do get a degree which will provide a fall-back career opportunity if (when) aviation lets you down. Finance should work, as would accounting, pharmacy, computer programming, even engineering.

Get a PPL when you can, no hurry. Then fly around for fun and work on your instrument rating. Graduate from college and get a real job. If you're still having fun flying on the side, then look at Commercial and flight instructor training. Try to keep your real job as long as it makes sense while training...money is the biggest hurdle to pursuing a pilot career. The first ten years of aviation involve high training costs and poverty wages (gradually improving to typical blue-collar wages).

As a Canadian you may need to come to the US to get entry-level flying jobs, those are harder to come by up north.

Training and licenses are very similar between US and Canada, conversion between the two is simple.