Just in case anyone wants to get out to work on their boat, I highly recommend that you take a gander at Nigel Calder’s Boatowners Mechanical and Electrical Manual. He has an easy to read style and covers a wide variety of topics. You will likely have to supplement what you learn from him with youtube, google and asking around. I do find that he sometimes has an in depth description of how to take the cover off of something, and then jumps to replacing the bits, without covering how to do any of the fiddly things in between. Nonetheless, it is a great place to start and a good resource to have onboard, whether you choose electronic or hard copy.
Keep safe, keep learning