Wantrepreneur: Where do I begin?

After a decent amount of time trying to research this on my own, in a way in which it feels like I am going around in circles, I am seeking the advice and brief mentoring of someone who could put me in the right path of how I should start the next chapter of my life. Quick background lead up to this point in my life, but I am in my mid 20s, with no formal qualifications and no work experience. How did I get to this point everyone may ask? Since the end of my days in high school I have been a professional poker player and that has funded my life, but as its now not financially what it used to be and my passion for the game is no longer existent, it has left me in a situation, in which in hindsight I should have planned ahead for, where everyone my age has either their own business, or is a college graduate, or has a well paying job. Meanwhile I am about as eligible to hire as a teenager going for their first after school job. Being the type of person that I am, I believe that If i put my mind to it, I can do anything. I currently have a comfortable amount of money to live for a while, so I would rather spend 16 hours a day working towards building something everyday, than trying to find a 9-5 job I hate just to make money. While I have no qualifications, I am reasonably tech savvy as I have spent my life in front of a computer, and have basic skills in things such as web design, graphic design, networking, but all self taught over the years to solve problems for friends and family as they came up. My question is for people who have been successful and made it, or are on the way as to where I should be looking to spend my time, because I have a lot of it currently and I dont want to spend another minute wasting time when I could be working. What books should I be reading, what online courses should I be taking to learn skillsets I will need etc Any help or advice will be greatly appreciated, and feel free to ask any questions!