You're diagnosed with the Dunning-Kreuger effect.
YOU are diagnosed with the Dunning-Kreuger effect.

The Dunning–Kruger effect is a cognitive bias in which low-ability individuals suffer from illusory superiority, mistakenly assessing their ability as much higher than it really is. Dunning and Kruger attributed this bias to a metacognitive inability of those of low ability to recognize their ineptitude and evaluate their ability accurately. Their research also suggests corollaries: high-ability individuals may underestimate their relative competence and may erroneously assume that tasks which are easy for them are also easy for others.

This pattern of over-estimating competence was seen in studies of skills as diverse as reading comprehension, practicing medicine, operating a motor vehicle, and playing games such as chess or tennis. Dunning and Kruger proposed that, for a given skill, incompetent people will:

fail to recognize their own lack of skill
fail to recognize the extent of their inadequacy
fail to accurately gauge skill in others
recognize and acknowledge their own lack of skill only after they are exposed to training for that skill