Why should you trouble yourself about the future? You do not even properly know about the present. Take care of the present, the future will take car… - Ramana Maharshi

Your own Self-realization is the greatest service you can render the world.

In accordance with the prarabdha of each, the One whose function it is to ordain makes each to act. What will not happen will never happen, whatever effort one may put forth. And what will happen will not fail to happen, however much one may seek to prevent it. This is certain. The part of wisdom therefore is to stay quiet.

The Self is only one. Do you feel hurt if you blame yourself or scorn yourself for your errors? If you hold the Self there is no second person to scorn you. When you see the world you have lost hold of the Self. On the contrary, hold the Self and the world will not appear.