So, try to make people laugh and always be willing to laugh at yourself. Believe me, if you've ever really looked at yourself, you have to admit, you're pretty funny looking. The audience must care for your main character and that only happens if you care. In life as in your art, try to be compassionate. Forgive others and, more important, forgive yourself.
Life is too short to go through it angry.
Try to overlook the faults and negative traits of others. Yes, other people are flawed and insecure, but so are you. Get a new hobby, Lee Harvey, and move on. Meanwhile, rejoice in the passion and beauty of others. Find the humanity in everyone.