Finally passing the MMSE after three attempts — what actually worked for me

So I've been a CNA for about two years and my facility just started requiring all nursing staff to be proficient in administering the Mini-Mental State Examination (sometimes called the Folstein MMSE after the researchers who developed it). I honestly had no idea how to prepare — it's not like there's a traditional certification exam, but my DON wants us to demonstrate competency and understand how to score and interpret results accurately.

I found a FOLSTEIN practice test online that helped me understand the 30-point scoring rubric, especially the parts I kept messing up like serial sevens and the three-stage command. The study guide I used broke down each domain (orientation, registration, attention, recall, language) with clinical examples, which was way more helpful than just memorizing the scoring sheet.

My biggest exam tips after going through this three times: really understand *why* each question tests what it tests, not just the mechanics. Anyone else gone through competency training on this? What resources did you use?