I would really appreciate some more practice questions. I took the practice exam, and it did not prepare me adequately for the exam, but now I know all of the answers to the practice exam. Is there any other material out there to help prepare for the exam?
The short answer is "no". There are no plans to come out with more practice questions, for reasons unknown to me.
To help you prepare for the exam, my suggestion is that you come out with questions yourself. Think like an examiner, look through the test topics, revise through all the "Knowledge Checks", and then write down scenario-based questions that can potentially be asked on that topic.