Who says people can’t change? I have long been a messy person. Not dirty, making-yogurt-in-your-closet-thanks-to-forgotten-cups-of-milk-dirty – but messy. The kind of messy that irritates others (parents, housemates, spouse), even if I know exactly where everything is. Organized chaos at best. I was the kid who didn’t keep her room neat. I’m the adult who struggles to…