I believe that there is no one right way to cope with all of the pain of living. As an academic psychologist, I know that people have different temperaments, and if we are prevented from coping in our own way, be it "positive" or "negative," we function less well.
As a psychotherapist, I know that sometimes a lot of what people need when faced with adversity is permission to feel crummy for a while, to realize that feeling bad is not automatically the same as being mentally ill. Some of my one-session "cures" have come from reminding people that life can be difficult, and it's OK if we're not happy all of the time.
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