12 months is the time between failing and reapplying. There is no such thing as if you fail flight grading or management interview, you can not reapply. I know there are a few people who fail on either of those stages, and they management to get accepted on their second try and are now working for CX. However, the key to reapplication is to show CX that you have improved your application over the course of the previous 12 months. So consider going to flying school take some flying lesson, or study something aviation related stuff, etc... that will improve your chance on your reapplication! Good luck!