Keep in mind, this is supposed to be fun, and fun is rarely complicated. Making the boat go is easy to do. The skills are in making the boat go as fast as possible, which is also known as racing, of which there is a great deal in Second Life. So today relax, learn, and enjoy, and think about joining some of the many yacht clubs and other sailing organizations. SL sailors are a social group, and most are happy to help out new sailors with questions or problems.