sapper,
First off I have never done extasy or what ever call it. I have heard that people with a predispotion to have depression or anxiety after taking it. Alcohol also does depression no favors.
I understand about self awareness. Right now I would not do any street drugs to treat like your PTSD or depression, I would think that you are a strong person blessed to survive a horrible sickness.
You really understand what is happening, and what needs to happen, getting stress under control would be my first pick.
I do not like crowds either, I have limit that function. When I do limit that I feel much more free, and in control.
There is meds out there other than prozac, that med made me have more anxiety than I had to begin with.
Talk with your doctor, It sounds like you have a good head on your shoulders!!! jmho....