Many times I had this thought how Life can be so cruel and beautiful at the same time. Most of the times the strategy I use is the one that comforts me in real life. Do you wanna know what it is?
I try to imagine my life as a part of Anime or Drama or some comic.
In this way, it doesn't hurt that much when reality hits hurt. I feel it's really cool. When people treats me poorly, I try to console myself believing that they're just acting their role of evil people in the comic or drama where world is the stage. we're all acting our part so things like these shouldn't bother me.
Yeah it all starts in the brain with the process of believing. You feel happy or sad in the way you process your mind.
So if you want not to be bothered by the worldly affairs then start by imagining life. It all then becomes much easier.