Non trad help! RN - Canada

I was going to wait until next year to apply, but life is short so I want to try to study for the MCAT and apply this year as a non-trad with a nursing degree. I’d be willing to buy a prep course given that I don’t have a traditional pre med background and would need some serious refreshers for the science portions. Other non trads - what did you use to study? How long did you study for?

Thank you :)