You got to get the hell out of that town however you can. What you say reminds me of York, Pennsylvania, where my brother lived for a while. The only jobs were factories and he hated them. I remember he worked in a kitty litter plant for some time. I'm pretty sure that time is one of the dullest, greyest times of his life. The town was depressing even just as a visitor - interesting, in the way that I find small towns to be, but clearly not a succeeding small town. Just save up money and go. I realize we're talking about how you're having difficulty finding a good job so that's not the most easy advice to follow right now but seriously. As little money as you think you can go on, and go.
Yes, I've always been struggling to get out. I lived in Chicago for the year previous. I only returned to my little town because I got fucked over by the University's student aid department, and I was extremely ill (I was positive I was dying - intense pain all over my torso, constant vomiting, couldn't eat anything, intense pain in my back - could only bear it in searing hot showers). I got forced into coming back. I'm here for a year, saving as much as I can so I can move East.