The problem is, your current job won't give you any skills for a better one and you don't have the education to get an entry-level position where a larger company would train you for something better.
Education is the key, and things will never, ever change for you if you don't go to college.
You don't have to have money to go, you can get financial aid. You can also live on campus, you can even eat there, and everything will be included in your financial aid.
I would suggest that you speak to an admissions counselor, while you are STILL young, and don't have children to get you out of the rut...because I am here to tell you, it will NEVER get any better unless you really, really want it to and are willing to do the work to get there.