I would recommend looking into entrepreneurship. If you are serious about turning your life around, you have a great story to tell and can use that to touch other lives.
Our fortunes are found in turning our failures into other people's solutions. Figure out a way to convert your failures into motivation to make it big.
Nearly all of the worlds most successful people, whether in business, sports, music, etc, had to endure many failures and hardships before they made their breakthrough to success.
Your story could be next...