Concurrently my interests in life, talents and interest in academic subjects are so broad and vast I don't know where to start.
You sound like you are stuck. I know that this may sound overly simplistic. I suggest that you just pick one of those interests and get moving. Try to break down your problems into smaller steps and make of point of doing something every day -- even if it is just five minutes -- make one phone call, check out one book. If you are considering going back to school, you might want to check out the book "Colleges that Change Lives." You also may have to take some unpleasant steps to achieve your goal, i.e. a crappy job that pays the bills while you work toward your goal. Sorry, but that's part of being a grownup.
Remember, even if you find that you have made the wrong choice down the road, you will not be trapped for the rest of your life. It is easy to think that this direction that you choose will be permanent. In all likelihood, it's not. I have had three complete careers changes in my adult life (four if you count being at home with my kids). I have been lucky, in that all of my career changes have been self-inflicted. While the changes haven't been easy, they all reflected things that I had learned about myself and how I wanted to earn a living.
Good luck starting your journey.