Hmmm. I guess Buffy must have fear of failure, because, well, everybody does. I see her fundamental fear being out of control, too powerful, even though she also wants to be effective. IDK. It's that whole, superiority/inferiority thing. Does succeeding as the Slayer mean failing as a human/woman/person?

Obviously, she feels responsible for every girl that she "empowered". But, when she was responsible for Dawn, in the parental sense, it didn't seem to bother her too much if she wasn't on top of everything. Again, I don't really know...