Wendy,
I have or have had all of the exact symptoms you describe. I completely understand where you are coming from. I recently got on Lexapro, and I take Lorazepam(Ativan) for anxiety when I need it. These have helped me a lot, but Im still waiting for the full effect. When I had it the worst about a month ago I'd wake up with that feeling and go ALL day long with it, I felt like I was going crazy and just like I didnt understand life and all the commotion etc. It's like a disconnect from reality thats why they call it depersonalization/derealization. And when you're feeling it, it feels so rational, almost like wow this is how Im going to think for the rest of my life. But it does fade away with time. What really helps me is to have some bench mark events in the week that I look forward to. For example: a TV show, or a get together with friends. Try to have something you do when you wake up as a routine, and also something you do once a day even if it's really simple.
PM me any time!! (one of my distractions is replying to PMs and posts that I can relate to!) :-)
Lauren