Captain Sandy Yawn leads a new crew in Croatia on season 11 of "Below Deck Mediterranean." Fred Jagueneau/Bravo This as-told-to essay is based on a conversation with Sandy Yawn, a superyacht captain who leads yacht crews on Bravo's "Below Deck Mediterranean." For the premiere of the show's eleventh season, she walked us through a day in her life at sea. The conversation has been edited and condensed for clarity. I started my yachting career young and worked my way up. Along the way, I worked fo