For me, being onstage for an hour and a half, my confidence was really huge for me. Doing eight shows a week for a run, I was like: "I'm actually doing this. " And now I feel more confident going into something.
Unless you really understand the water, and understand the reason for being on it, and understand the love of sailing and the feeling of quietness and solitude, you don't really belong on a boat anyway. I think Hemingway said one time that the sea is the last free place on earth.