Helping one person might not change the whole world, but it may change the world for one person.
Many years ago I would listen to a monthly audio program. To put it in perspective these were cassette tapes I would listen to. The speaker was Anthony Robbins and I believe the name of the program it was called power talk.
The idea was simple every month he would interview a person who was incredibly successful in their field. Every interview ended with the same question, how do you want to be remembered when you are gone? The answer was always the same no matter what field the successful person had come from.
It wasn't the wealth or the lifelong achievements they wanted to be remembered for, it was for having made a difference.
Remember, you cannot hit a target you cannot see. Since today is all you ever have, set your target, your goal , or purpose, or mission at simply making a difference. when you do this, notice how much more you enjoy your day.
Life IS what you make it.