I am sorry to hear about your recent experience when taking your PMP exam with Pearson Vue. Having your exam revoked is frustrating and upsetting. However, the best way to avoid any incident next time is to take your PMP exam in person. If online is your only option, make sure you read the PMI page with valuable information on what to expect during the exam and how to pass your PMP exam online successfully (check out this link
www.pmitoronto.ca/blog/pmp-exam-online
). For example, one rule is not to speak or mumble during the exam, and the other is not to move away from the camera unless it is time to take your break. Always ensure to communicate with your proctor before doing anything. Another thing to remember is that even after you pass your exam and get the congratulatory message, remain seated until you hear from your proctor confirming the completion of your PMP exam.
I hope these were helpful feedback and suggestions. Do not despair; you can do this. You are closer to the finish line to earn your PMP Certification. Best of luck!