Life is not always easy, sometimes the unexpected happens, your relationship goes south, you get fired, the IRS agent knocks on your door. And it is often difficult to deal with it, you get angry and it feels like the universe hates you, and just only you.
What helps in this case? meditating perhaps, or yoga, or the 5 min rule i read about in michael ellsberg's book: the education of milionairs.
It's actually very simple, everytime you feel angry or betrayed or desperate, let it effect you for just precisley 5 minutes and then focus on your task's and start over.
It may take a while to actually stop after 5 minutes but it is worth it.