Be patient. Be still. Things aren't always what you want, but they can be. Enjoy the moment. Enjoy the freedom that here & now brings. Let the future take care of itself, while you take care of the moment.
Try to learn to breathe deeply, really to taste food when you eat, and when you sleep, really to sleep. Try as much as possible to be wholly alive with all your might, and when you laugh, laugh like hell. And when you get angry, get good and angry. Try to be alive. You will be dead soon enough.