I once knew a guy who was a loser. He was socially awkward and nobody liked him. He saw the world as a popularity contest, a contest that he was perpetually losing. Everything from how much he earned at work, to the poor service he got at restaurants, to the people who didn’t laugh at his jokes.
I never thought of it that way, but it is so true. You judge others the same way you judge yourself. I relate to this one specifically because I always thought about what others thought of me. It became obsessive at one point before I learned not to care. A better word would be carefree, why worry what others think?