Whenever things don't go in our favour, we start accusing the world. The paranoia in us takes over us and everyone starts seeming vindictive. Drastically, the case isn't the same when we are having happy times.
This is due to our inability to think negative about ourselves. However, this inability turns into a gifted ability when we are thinking about someone who we do not like. Often, what we like and what we don't like combine and make us think was it indeed something that was worth liking. And thereafter, realization begins that I did not deserve what happened. And this realization will keep happening until you realize that you don't get something because you deserve it or not, but instead, you have to grab that something. Rarely, something would come to you because you deserved it.