One day in Brisbane in 2014, I was feeling really low. My husband was away in Perth for a week. It was one of those days when I spent the whole day scrolling social media and finally found a post my friend had put up. She suffers from depression and her little son had said, "Mummy, just have a day. Not good or bad day. Just a day." Six years hence, I still think that is one of the most beautiful things I have learned from a child.