The polygrapher said you "were holding back info" and to spill the beans which you did?  What did you "spill"?

You say you know about CM's?  You must not have read about them in TLBTLD.  If you did you would have most surely known that the polygrapher was playing you.   You fell for his interrogation hook line and sinker!  Sounds to me like you made some confessions in rather significant areas.  I can only assume that you confessed or made statements in the poly that were contradictory to what you wrote in the "lifestyle/personal disclosure form you most likely filled out with your application.  

Base on what you wrote I think I can safely say you failed.  Start focusing on some other line of work as you will never make it as a PO.