In my case, being positive doesn't help me at all. Coz when I do, that's the time when I become too conscious of my behavior, my deeds, my faults, everything! It does make me feel happy, like I'm in control of myself and I definitely know my plans in life. And when I do fail, I get to tolerate it at first, but in the long run it just makes me feel depressed. Most of the time I'm worried because I want to make everything just RIGHT... but when I'm back to my pessimist self, I feel relaxed like I don't give the f*ck what I do or what happens. When I fail, I simply shrug it off and give myself another chance coz I've expected it anyway. But when I succeed at something, the impact is much greater because I didn't see it coming. Makes me feel happy and surprised. Maybe it depends on the person. I'm fine with my pessimism.