If you're interested in learning more about solo sailing voyages, the new non-fiction book "Sailing Alone: A Surprising History of Isolation and Survival at Sea" by Richard King is fascinating.
https://www.goodreads.com/book/show/64645764-sailing-alone
Another recommendation: Racundra's First Cruise by Arthur Ransome.
I love “Sailing Alone Around the World” by Joshua Slocum. He was the first to do so. I always wanted to build a replica of his boat (plans are available) and do some solo sailing, but maybe not around the world.