Belief that you have to carry it all is a damaging belief. You have a God who loves you, and is going to help you carry the load. Just give it to Him. You also believe that you have to do something great that will leave a mark. Many people feel like they have to leave a legacy through doing great things. This is a different mindset than the believer that follows Christ. Finally, many people find value in their life through achievements, what they have done, or what they are leaving behind. Our value is not in that.