Belief in our own ability can be either our most important strength (if we believe in ourselves) or largest fault (if we don't believe in ourselves). It is difficult to always believe that we have the ability or capability to accomplish certain tasks. Doubt creeps in. Past failures come to mind. However, if we believe that our talents and abilities are not our own, but they are truly a gift from God, then self-confidence should be the only option.
Lord, thank you that I am not doing any of this on my own.