If one tends to be a humorous person and you have a sense of humor the rest of your life then you can certainly lighten the load I think by bringing that to your trials and tribulations. It's easy to have a sense of humor when everything is going well.
There are certain things I learned when I first started learning about acting to try and place the character physically and emotionally. And the way you place them emotionally is often with humor.
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Humor is such a wonderful thing helping you realize what a fool you are but how beautiful that is at the same time.