Bro, I'm going to give it to you straight and don't be offended by this -
You've got to grow up and stop being stupid. You've got child support payments coming and you are out getting a DUI and considering dealing illegal drugs for extra cash? (And totally a car that you still have to make payments on tells me you weren't insured.)
You have gotten yourself into a long term situation situation by not thinking and not thinking ahead. You need to sit down and make a plan for your life. Decide where you want to be a year from now, five years from now, ten years from now, and 20 years from now. Then you are going to have to figure out how to get there.
Life without serious job skills is a losing proposition. You need to get whatever schooling you are going to need so that you can embark on a real career... and then you are going to have to look at applying yourself long term.
If you need to go to school nights you are going to need to go to school nights (and weekends.)
The bottom line is you have a kid coming. Your time of being a kid is over.