Let's be real anon it will take you more time then you have left to live. You fucked up your life. they only way to improve it is to make small changes. Start with 1 hour a day of
https://www.khanacademy.org/ to get your basic math correct in your mind. after you have done that start learning to program and do some
https://projecteuler.net/ or start watching MIT lectures on math. Start slow and make small changes you will never change your life in 2 seconds you need some time to undo the years of fucking up.