I'm assuming you recently graduated from high school..if so, then do this:
1) enroll in your local junior college and take math and english composition classes, and nothing else. Continue for the next semester or so until you get through trigonometry(or equivalent) and english comp 2(the english comp where you read shakespeare etc and write reports). Do this even if it means starting at the dip shit remedial level. The reason for this is that these will be the most valuable skills you can readily acquire, plus it's setting you up for the future in the event you decide to continue on in college.
2) Assuming you have to work, just get a shit job at McDonalds to get by on. Don't get suckered into some full time job, and especially don't go into construction full time otherwise you'll hate yourself in five years and will probably end up committing suicide.
3) Start messing around with coding. Start simple. Get a "Java for Dummies" or similar (tons of online stuff for learning coding). The goal here isn't to become a coder, but to simply make you more aware. Learn just enough that an actual professional coder would mock you, but enough that you might impress your dumbest of dip shit friends.
4) Once you've completed trig and english, then decide what you want to do. At this point, you can go into the police, fire academy, work a shitty construction job, or stay on at McDonalds with a clear conscience.
This is exactly what I did, back in the day(except I work at Jack in the Box)...now have a masters in engineering and make well into $ix figures...