In general I think it does apply to all of us (even though it usually feels like we're all alone in what we're going through). Although I think it's important to make the best of whatever situation we find ourselves in, sometimes the positive thinking approach can keep us from facing the negative things that need to be dealt with in order to get through them, and that's usually not a healthy thing IMO.
Great point about taking the "good" and "bad" out of it...life isn't typically one or the other anyway, and thinking it is (and the fear of it) can be crippling. It definitely interferes with putting our focus and energy where it needs to be, and keeps us out of balance.
I'm in an off-kilter place in my life right now too, and I don't know what to do with myself. Hopefully we can both get back to a place of balance and find a healthy/happy balance in our lives. Hang in there, girl. *hugs*
Now, before we get accused of derailing the thread...