We need to feel worth it in life. It doesn't matter that there are 8 billion people around. I think if you can imagine helping other in some area you are good at and other might be struggling, you can pretty much stop procrastinating right away. I recall a psychologist who said that for every hour that patients go them they must do two of for charity work where they directly help others. He finalized saying that he doesn't know if his therapy is good but that the other two hours were working extremely well.