When you know you are kind to the people around you, and are making a positive difference in other people's lives (even if it's just being kinder to the person who opens the gate for you everyday), you will know that you are a positive force in the world and your good deeds will be rewarded by GOD!
Find a way to make helping others a part of your weekly routine, no matter how small. The act of helping will not only benefit others, but it will glorify GOD and bring life to your purpose!
You don't have to help someone in your community to feel the benefits of helping others. Sometimes, someone close to you, such as your mother or your best friend, will need your help as much as anyone.