Very glad after years of practice that my Skype language exchange partner said I was fluent during our last call. Yay! I’m still not fluent according to my own criteria as I don’t feel I’ve got enough vocabulary and my mastery of some of the basic grammar rules leads to awkward or halting communication. I’m still a bit fuzzy about when I’ll feel I’m fluent – but my working definition right now is that I’m comfortable speaking in the language with co-workers who are native German speakers. I’m definitely not there yet!