If you have scheduled it and either have no experience or minimal experience auditing, and/or have not taken the course, done the study guide, or practice exams, you are not setting yourself up for success.
As suggested above, I would say at a minimum, you need the study guides and do all the practice exams.
Do you have auditing experience? As described on the AAPC site,
"Experience requirements
Please be aware that the CPMA certification exam is a
difficult, high-level examination and is not intended for individuals lacking training or experience. Examinees should have CPMA training and/or experience in auditing physician services, and be well versed in different types of audits, including evaluation and management (E/M)."
The process for preparing and info is all on the AAPC website...
Success as a CPMA® is dependent on your ability to prioritize the information presented and organize it in ways that allow you to problem-solve efficiently.
www.aapc.com
The CPMA was the most difficult and highest complexity (in my experience) out of the seven I have done.