If I took a grade 12 course in grade 11 am I able to use that as one of my 6 required credits?

Yes, schools will be more concerned that you have the correct prerequisites, and less concerned on when exactly you finished them. You could even take a summer class, so long as you have the prerequisite completed when you apply to the college or university. When in doubt, it’s always a good idea to reach out to the school and ask an admissions rep directly. You can find contact info for many schools on SchoolFinder.com or StudyinCanada.com!