While those who join the DEP have signed an enlistment agreement to report on a certain date for training, they are not yet members of the United States Armed Forces until they enlist in the regular component of their selected branches on their ship dates. So you were not techincally in the CG, you were waiting for the CG. Also, I'm trying to find the dates but I didn't think the DEP program dated back that far. My ex enlisted in 1985 and there was no such thing at that time. Our son enlisted in 2009 and at the time, DEP was merely a suggestion. I think he was in DEP for a week. Now there are mandatory times to complete background checks but that is of a more recent history, like 6 years or so. Since we've established your DEP time really counts towards nothing on the active duty side, you do not qualify for veterans benefits. You must be active duty for 181 days to be considered a veteran and get those benefits. I am sorry you sustained such a debilitating injury but it is what it is. You signed a document that was probably not in your best interest but most would in that position. I really don't think the CG would have done a whole lot more than heal you and send you on your way, even if you hadn't signed that paper.
Also, I don't know who has shamed you into silence. There is nothing to silence you over. You went into the CG, you sustained an injury in 14 days, you were discharged. That still happens today. You're not a veteran. Your DEP time only counted towards time in but not as active duty time. My husband went into the Army in 1978, he served 4 years. He still has a hard time getting some VA benefits. His 4 years, your 2 weeks... don't worry, you ain't missing a whole lot from not being afforded VA benefits. I'm not sure what other benefits you might think you are entitled to beyond medical but there isn't much unless you do your 20 and retire.