What does preparing for anything mean? I can think of a few things I have learned recently.
Work for what you have,
it means more to you, and you will waste less. Studies show that people who won or were just given money spend foolishly, as they do not know the value of what was not earned.
Try to simplify.
This means different things for different people. You can only make life as simple as what is around you. Do you really need.... Will it add to your life, or clutter it?
Be happy with now.
This is the toughest for myself. I am rarely content, very rarely. There are moments of it, and I am grateful for them. We only have right now, that is it. Tomorrow is never guaranteed. We should plan for tomorrow, eg. save for tomorrow. But life is much better if we live for today.