Are some people simply destined to be unhappy?
We all have a happiness set point. A baseline level of well-being that we return to after our emotional highs and lows subside. There is a level of heritability that is reflected in our personality, temperament, and overall affect.
Fortunately for the sake of happiness, biology is not destiny, and we can take efforts to increase our level of well-being by creating environments and experiences that are conducive to our happiness.
This idea of changing our life-circumstances is related to the bottom-up theory of well-being.