Visit other churches. Go skinny dipping. Sleep under the stars at least once. Winter is best, when bugs and snakes are asleep and you'll wake with frost in your hair. Start a daily journal, not a diary.
Diaries tell what and when, journals why and how.
It'll help define who you are. Write in it when you're feeling great and when you're feeling rotten. Bare your soul. Your children will read it someday and realize you were vastly more complicated than they imagined. Visit someone in jail.