When we're born we look for food, not purpose, I think living with or without purpose is the same, the purpose is being yourself and doing what you want to do in your life, you only live once to experience things that you never experienced before, the purpose is like an accomplished or mission if you want to make you happy, etc. Or maybe do your best or greatest that when you die the world will cry happily and the world will remember you because of the great things you did