It is man's social nature which distinguishes him from the brute creation. If it is his privilege to be independent, it is equally his duty to be inter-dependent. Only an arrogant man will claim to be independent of everybody else and be self-contained.
Human potential is the same for all. Your feeling, 'I am of no value', is wrong. Absolutely wrong. You are deceiving yourself. We all have the power of thought — so what are you lacking? If you have will-power , then you can do anything. It is usually said that you are your own master.