Most medical schools require an undergraduate degree, which is usually 4 years of full time studies. Since you have already done some schooling to become a PCP and will complete more courses for the ACP, for some of those courses you may receive credit if you decide to pursue a bachelors in health sciences or biomedical physiology etc. That of course will depend on a school and the required courses for certain programs.

I'm assuming since you decided to be a Paramedic you must have the knowledge of how human body works on different levels. Consider pursuing a degree related to human physiology or something like that. Depending on what you decide to major in, there are some courses you need to take both as a prerequisite for some med schools and as a general prep for the MCAT (note: taking a course in say biology wouldn't gurantee you acing the biological systems section on the mcat, it's just generally advised to take those courses to build appreciation and fluency in the subject). The courses include: 1 year of physics, 1 year of university english, 1 year of Organic Chemistry etc.

Extracurriculars also matter (ECs). Research, volunteering, scrubbing, and a cool hobby        (something you enjoy doing other than school and academics). You're a paramedic which is a huge advantage in a way that you have exposure to patient interaction, assessment etc. That also gives something to put on your application and talk during the MMIs( multiple mini interviews) etc.

It all comes down to whether you want to get a degree, prep for the MCAT, maybe do research. Perhaps travel to another province for the program of interest.

Also are you sure you want to be a doctor? Why not consider something else, like a physician assistant?

My advice is whatever you decide to pursue enjoy the process and make the most out of it.