Congrats on failing the exam. Stay positive and I would agree with the above comments. Follow the guide thoroughly and focus on high yield topics. See what potential questions you can derive from it or other ways to ask the question. You've taken the exam once already so you know what was asked and what you don't know. The test can only do so much to repose the questions on a particular topic and I doubt it would be much different. Focus on what you don't know or topics that seems a bit fuzzy to you (meaning you can't explain it to someone in your own words or teach them). There are students that studied like crazy and felt overwhelmed, but failed like you. Then there's those that know to focus on the main topics, high yield (with the guide), and weak areas...and they passed. Again, use the guide. Review and check off topics you already know (why spend time on them at this point). Then focus on weak topics until you are confident with them. As you check off the list on the guide, you will feel better and more confident. Kill it.