If you have a job try and get a cash advance or borrow some money from someone. The correct thing to do is to not get involved in crime. There isn't much you can do to magically get 750 dollars. Bro I would just ask to borrow 50 bucks from everyone I could and eat the shit paying them back late while they all hound you at this point. If your dad/mom/grandparents have money .. ask them for the money take the ass wooping and clean up your life.

Also just to point out. I absolutely understand to be honest. I was very deep in the wrong places when I was a teenager. But getting away from all that stuff was the best thing I ever did. I spent too many days on drugs or with drug dealers. Just pay back your debt and get your shit together. A normal life is 1000% better than fucking around with bad people.