Gonesailing - here's a suggestion that might be helpful for your "years with purpose." Contact the crewed charter boats in the Caribbean and talk yourself on board as crew. You may have to do it for low pay, but you'll get room/board/boathandling/on-the-water experience etc. I did this for a couple of years and it was invaluable as a learning tool (learned celestial as well.) Of course there were some awful people and a couple of lousy berths, but there was always a glass of rum somewhere nearby.
What I typed was "even if today was the first time I had seen water" .