Okay so I've been lurking here for months and figured it's time to actually post since this community helped me so much. I passed my ATDH certification last Thursday on my third attempt. Third. I'm not embarrassed about it anymore because I genuinely didn't know what I was doing wrong the first two times.
The thing that finally clicked was finding a decent ATDH practice test that actually matched the question style on the real exam. My first two attempts I was using random flashcard apps and honestly they weren't representative at all. The real exam has a lot of scenario-based questions where you have to apply knowledge, not just recall definitions. Once I started drilling those kinds of questions, my practice scores jumped from like 61% to consistently hitting 78-82%.
I studied about 90 minutes a day for six weeks leading up to my third attempt. I also used an ATDH study guide that broke down the domain weighting — that helped me stop wasting time on low-percentage sections. Happy to share more specifics if anyone's prepping right now. Don't give up on this one, it's passable.