What always makes someone miserable is that they are not getting what others having, something(love, time, affection, encouragement, happiness) they can get from other people(fnds, family, associates).
If we take a moment to analyse this situation of miserableness, it is only in mind. Nobody gets what they actually want in first place. Every single soul either accept what they get, or simply deny what they don’t want.
Some people keep this miserable state of mind for more time than the thing could last.
Human nature doesn’t need constant same state of mind, nor the path of a individuals life.
Come over from this insignificant things, there are more things to go through in life.