I was disqualified (DQ'ed) from an agency because they said I failed the polygraph.  I was told I could reapply in a year or two and I would like to.  I wonder if a previously failed poly bans me for life from an agency, but if it does, why would they say I could reapply?  Has anyone ever successfully, meaning that you got hired with an EOD, reapplied to an agency after a polygraph rejection?  If you have can you share your story?

I will tell you for a FACT that NSA, DIA, FBI, and CIA ban you for LIFE when you fail the poly.  Even though they tell you that you can still reapply in a year, which you can, but they will still reject your application.  They may be so kind as to tell you that you failed the background check, which includes the poly in their opinion, on your previous recruitment which is why you got rejected again.  Or, they won't tell you.  You take days to fill out another application, put in all that hard work, and get rejected again.  Fail the poly, banned for life.  Only solution is reapply with a new name and social security number.  Though you will have to get your old college transcripts, employment history, and other stuff to match your new fake identity.

I wish I had this website three years ago. I was submitted for a high-pressure polygraph when I was submitted to get my security clearance for my job. I, knowing nothing about how these worked, confessed to literally everything I did ever, giving a couple of damaging admissions in the process. Of course, I was denied my security clearance because of it. Now, three years later, my company wants to promote/re-locate me and it would be a great opportunity for my family, but I would have to go through the clearance process all over again. 
Is it even worth going through it again because of my previous damaging admissions? Should I even try? What do I do? What do I say?