Only then, can you begin to learn. Being stubborn is not the same a being right. Open-mindedness is not a weakness. Effort is the great equalizer. Often what one lacks in talent, can be compensated through hard work.
Confidence is a requisite for success.
If you don't believe you can do it, odds are you wont be able to. A smile goes further than a shout. A dream is just something you haven't accomplished yet. Do yourself a favor, and always wear flip-flops in communal showers. Observe, with the same compassion, skill and sincerity as we did that night when our friend needed us.