Give life to things which are beautiful. Don't give life to ugly things. You don't have much time, much energy to waste. With such a small life, with such a small energy source, it is simply stupid to waste it in sadness, in anger, in hatred, in jealousy.
Use it in love, use it in some creative act, use it in friendship, use it in meditation; do something with it which takes you higher. And higher you go, more energy sources become available to you.
At the highest point of consciousness, you are almost a god.
It is in your hands.