I have always had a difficult time, that when something that I really really want finally comes to fruition, when I finally have what I want..then I somehow feel let down.
I don't know what I want. I think I do sometimes. But when I'm depressed, I ask myself " Is there really anything I could buy or have that would change this feeling ?" The answer is always NO.
I'm learning to just do the footwork, do the next best thing, and let things unfold as they may. I'm usually pleasantly surprised.
Edit: One more thing. I was talking with another A today about depression. A theory we share is we are finally experiencing loss and grief that we buried when we were drinking.