Me? I prefer to know how stupid I am than to not know the level of my intelligence!
I suffer from confirmation bias, although my shrink calls it anosognosia. I hope to be cured by science.
In the meantime I medicate myself with Dronabinal / Ethyl Hydrate . I sometimes resort to taking benzoylmethyl ecgonine when the symptoms are particularly pronounced...I remain skeptical of my prognosis.. but WTF! We all have our vices. ;-)