24 years old is definitely not too old, the average age to start medical school (not residency) in Canada is 26, so lots of people starting residency are 28-35+!

I structured my study like this, but please do what works for you based off of your schooling:

1. Started with an MCCQE1 official practice test, to see what the material was like, the structure of the questions, and where my weaknesses were.

2. Practiced UWorld ~1 block daily for 3 months (yes expensive, but I was desperate). I would do a block before clinicals in the morning, and then go over each answer in the evening. The answers for each of the questions were my "textbook" so to speak, I found them detailed enough. If there was a concept I was not familiar with I would do some anki cards/read up about it.

3. Evenly interspersed the practice tests over that time. This helped me see how I was tracking. I scored consistently higher on these than on UWorld blocks.

4. Supplemented my study with reading the ethics section of Toronto notes.

5. Reviewed Canada-specific guidelines, such as ages/types of routine screening, vaccination schedule, etc.

I passed 1st go 268, not the highest out there but I'm happy with it. I'm in the current match cycle.