I might get fired from a fast-food mcjob for incompetence.
I don't even know what to ask. Is there a lower point? What should I do that dosent involve a gun?
Begin a study of law and money. More doors will open for you - not only in your life, but in your mind as well. As simple as taking a trip to a library or beginning a research binge online.
Fast food is high turnover, that's just the way of it.
Find other work and plan how to make yourself more employable. Alternatively take the money you have and be smart with it. Trade used cars etc.