DaGoofyGoober - A person who thinks they're the best at everything but they'

A person who thinks they're the best at everything but they're just a mess of bad luck and worse fashion.

My sister is a DaGoofyGoober. She tried to be a fashion icon and wore socks with sunglasses to school.

My brother’s friend is a DaGoofyGoober. He tried to become a rapper and now he just raps in the shower.

My uncle is a DaGoofyGoober. He tried to start a garden but now his yard looks like a warzone.