You can make the world a happier place by focusing on what makes you happy. Do not focus on what you think will make others happy. Make the choices that will bring you happiness. Your emotions affect everyone and everything around you. And you get to choose how you feel in each moment. When you are happy, you are creating happiness all around you.
Do this exercise to help create more happiness in your life.
Visualize multiple streams of happiness from many different directions coming into your left hand.
Then these multiple streams of happiness flow through your whole body and out your right hand to everyone and everything around you.