When I was younger I was a brownie and then a girl guide. Our motto was always "be prepared". Now this is something I've carried on through my life.
I try to be organised and ready for events and experiences way earlier than I need to.
The biggest thing I wasn't prepared for though, was becoming a mummy to a child with special needs. We didn't know anything was wrong with Ethan until he was 4 days old and even still we didn't know what the future would bring for Ethan.