I have done hundreds of math drills (not simple calculations, but full case math drills), and a key issue im facing is still to not correctly account for the entire structure properly. For example, if the question is about finding a reduction across 3 years, I will sometimes forget to account for a small sub-segment.
I have tried using checklists (e.g. one bullet point that clarifies if I've accounted for all variables), but it still did not seem to help me much. The times where I can get it completely right is either not consistent, or I take ages to structure (and this does not even include pressure in a real MBB interview setting)
I understand that practice is a huge factor in this, but I've been putting in so many hours into this and still making this mistake.
Would love some tips on how to improve this please, thank you !