Call me a fool, but I see all of us feeling better in 5 years. 10 years, tops. I don't think the research is all that far off, now that the parts of the brain that are f*cked up have been identified. We may start out with some crappy med that gets rid of DP/DR but causes, I dunno, chronic flatulence or something like that. Still, I don't think it'll be that long before we see ads on TV saying "Ask your doctor if Reali-tor is right for you".
P.S. I know the dispair Imagine feels; I used to tell people that I thought I'd be dead soon as well. I think I thought that if I sounded serious enough, someone would have to come up with a cure somehow. Imagine, have you tried Lamotrigine yet? If you did and it failed, did you try a different SSRI before giving up on it? How about naltrexone? Might as well give it a shot. Hope I don't sound like I'm lecturing (though I probably am old enough to be your dad).