Many of us go about our days assuming we need to be useful. What does this mean to you? By the end of a given day, after you have accomplished whatever has been done, you go to sleep and move from a sense of being useful to a sense of being useless. Could this help to explain why you awaken to feel refreshed, relaxed and unburdened? If you don't feel renewed after a night's sleep, then this is an invitation to ask yourself why.
In life, many people are goal-setters. They set out to accomplish particular tasks and their emotions evolve based on whether or not they achieve desired results. Imagine the positive impact on your life from the moment you evolve to believe that every action, mood and state is useful and useless, depending on your attitude and state of mind.
You may have reflected on self-worth. You may have thought about what being "useful" does and doesn't mean to your own goals. Why should being useful be limited to a narrow list of criteria? Why might you benefit from seeing the flip side. Life is what it is. Nothing more, nothing less. You can determine that everything you do has meaning and value to yourself, based on lessons that you choose to learn. You are also always helpful to someone.