Have "clarity" in your life.

Live your life "consciously".

Don't do the impossible in your life. Do whatever is "needed" and "possible" and you will see you will be doing the impossible.

Feel free to live "your life" as you want, so you could feel as much happiness as you can till the and of your time.

Enjoy alll you can, so you can gather so much happiness in your life that in your last moment you could say "it's been the best life I've had".