Spent weeks reading through Adobe Analytics official documentation and their developer guides before my first attempt. Thought I had all the technical stuff covered but the exam was completely different when I actually took it.

Got frustrated and switched to itexamstopics.com exam topic-wise questions instead. Doing real practice tests made everything click way faster than reading those docs ever did. Two weeks of grinding through their practice exams and I passed on the second try. If you're going for AD0-E213, forget the Adobe docs and jump straight into practice questions. Their questions are solid and way more effective.