>>33900189
My answers to you will probably be rather general since I don't have a clear picture of the educational system in Canada.
>1
After graduating high school, I was one of those "pre-meds" who lacked the maturity to handle college the first time around, but I did take many of the pre-requisite courses for nursing which still counted later (e.g., biology, chemistry, psychology). In general, most of the coursework that you've taken would likely be counted as general education credits unless you have health science classes. EMT only went so far as being a good medical background having field experience and a modicum of training.
Almost across the board in the US anatomy, physiology, microbiology, chemistry, and introductory/developmental psychology are required before entering into actual nursing coursework.
>2
I had always been drawn to healthcare. It is something that I was passionate for, but also failed spectacularly as a student when I was younger. I got my A+, opened a small tech repair and service business and wizened up over a number of years. At some point, the nagging thought of making a positive difference finally caused me to go back to college. It wasn't a necessity, but it felt right. Nursing was the most reasonable option as I finished the pre-reqs for RN programs while finishing a "general" AA then BA which I had never completed after dropping out my first time around.
>3
Nursing school can be competitive, but if you nail your pre-nursing coursework you should be competitive. My GPA before dropping out of college the first time was like 2.8. When I went back a decade+ I aced the classes that I took which mattered a lot. That said, with nursing shortages in the US now, hospitals are paying entire tuitions for work agreements. I don't know how that is reflected in Canada though.
LPN is an option. It really gives a strong basis on pharmacology and medications as that is often their role, however, the pay difference is big.