People talk about changing the world. It is like moving the whole mountain in a go whatever direction you think the mountain should be placed at.
But the mountain is made of stones. If you pick one tiny stone and do something, ultimately at the end the whole mountain will be moved.
Similarly, the world is made of people and creatures. Pick one and do one good thing for them. If you do it consistently eventually the whole world will change.
Don’t try to change the whole world in a go. Do one good thing to one person today, even before they ask you. And see how you will make a difference.
It is your life. Make it large by doing a small thing at a time.