This woman started to take happiness seriously and spent a year to check old wisdom about it and find her way to it.  One thing she suggests is that everyone make a list of their personal commandments.  Here is the beginning of mine

• Get the most out of it.  Get the most out of yourself.
• Find a way to enjoy it.
• Compose your life into a single piece of art.
• Check regularly if you are on your path.
• Push your comfort zone.
• Don’t be too hard on yourself.  Don’t be too soft on yourself.