Which are you?
I'm a glass 1/2 empty person...now before you start booing and hissing there are some benefits to being what I would call
grounded and realistic.
I'm hyper-vigilent in making sure I don't leave anything to chance. I rarely do denial and that helps me get things done. I'm also not often disappointed when things turn to crud because in the back of my mind I kind of expect it.
The downside would be that I'm only moderately content in this lifetime because I see the world as kind of harsh.