take what you have and "start" learn to sail, learn how to read the weather
, learn to fix things, learn to navigate with the sun, learn to plot courses to wind
direction/speed......Learn to Adapt and change. take small steps and as your knowledge grows move on. who knows you may take that boat around the world, you may go half way and turn back or stay in some foreign place or you might even just stay coastal. you might go through many boats. As long as you experience/learn something new, you will not have failed.
Having an end goal is a good thing, as without it you would never start. Everything betwixt today and the end goal is uncharted. If you keep an open mind and know that you'll never know everything and are willing to ask questions, no matter how stupid they seem to you, your journey will be grand. Look up "Journey to Ithaca" written by CP Cavafy.
PEACE LUV & HAPPINESS