Well said, Bill.

I'm more realistic than those who find certainty

Art, there is even more truth in what you say than one could wish: People tending to depression are more realistic than others (the causal connection is a riddle still), there's even a research field called 'unrealistic optimism'.

In a nutshell: You either can be wrong and happy or you can be right and unhappy.

That simplistic dichotomy is of course faulty for at least two reasons: First, people cannot chose what they are like a lifestyle ("from tomorrow on, I'll be an optimist"), second, the correlation is not very strong and there is a very large overlap.

Wolfgang