Hey, great to hear that you have decided to embark on this journey! I wish you all the best of luck and I am sure you will get in.
You should email Suzanne Jackson (program director) and she will tell you if you are on waitlist or will get admitted or not this year.
I took Math 215 (from Athabasca University). Since the acceptance rate for this program is 10%, make sure that you get at least A- to make your application stronger. For someone who applied to the program for two consecutive years and asked for feedback from current students and Suzanne herself. Make sure you explicitly mention what exactly you want to achieve as a result of the program and how will this program enable you to achieve your desired goals. Be as explicit as you can and do your background research on the program/school and the courses it offers. I got in this year after following those two rules. As mentioned on their website, the letter of intent really makes or breaks your application, so make sure you communicate your passion and vision clearly to them and of course the reference letters should also validate that you care about public health and want to make a difference.