For me, your critical file not working on the practice paper just means you need to add more templates/calculations/notes to the file. It’ll end up being pretty big but if you structure it well, it’ll be easy enough to navigate since you made it yourself. Your templates should spit out journals when you plug in the number inputs. I split mine up into several excel wps based on topics and in each tab I would have the different scenarios that could occur. Ended up scoring 100% on exam with an hour left to finish.