One of my favorite posters says, "Life is a test. It is only a test. Had this been a real life you would have been instructed where to go and what to do." Whenever I think of this humorous bit of wisdom, it reminds me to not take my life so seriously.
As an experiment, see if you can apply this idea to something you are forced to deal with. Perhaps you have a difficult teenager or a demanding boss. See if you can redefine the issue you face from being a "problem" to being a test. Rather than struggling with your issue, see if there is something you can learn from…
Don't Sweat the Small Stuff... and It's All Small Stuff, by Richard Carlson