Recruiter Told Me Wrong When I Enlisted And Now I Am Being Admin Seped ?

When I enlisted into the Navy Reserve i told my Navy recruiter everything about my juvenile offense and he told me that I would need to get a waiver if I wanted to enlist. I told him okay no problem. then a few weeks later he told me that I did not need a waiver any more cause the records would not show up on a police report because they are sealed. So he told me it was ok to sign the non disclosure form stating i had nothing. So I did! (Stupid me) now he give me the security clearance form to fill out and I asked him if I need to disclose on this form he said yes put everything… so I did no problem cause I was not trying to hide anything as I all ready told him. Now 6 years later I am getting activated for duty I was called and they told me I was being admin sep’d for fraudulent enlistment.. Wait an minute I told my recruiter everything and now I am getting this… They did how ever tell me since I was not trying to hide anything that I could get a waiver. What are my chances at getting a waiver?