Every person has a potential in him but the need is to discover it. Everybody around you has the same potential but what you need is Enthusiasm, Dedication, Honesty, Focussed-Approach and Self-Confidence. These all can come only from you and what you need is to bring them out. Leave the tendency of worrying about the results, just give your best and you would definitely reap very good harvest one day. And your given best will again come to you.