What am i doing wrong to get junk cars????

You're in a rural area. Have you tried stopping at farms or anywhere you see an obviously abandoned car? When my business gets short, I'll do those stops. I do find though that the farms with the most rusty machinery and vehicles are belonging to a hoarder who won't part with ONE THING !! I have friends like that who I've known all my life. The guys are in their 70s and have TONS of stuff they'll never use but won't part with a thing.

I was fortunate to fall into a job recently and hauled many loads of bigger stuff from the outside, but a 150 ft building is full of this kind of stuff from an estate. (Pic below). Much will go to scrap. You might consider scrapping from buildings also. Don't just concentrate on cars. I helped gut a doctor's office last fall. Much copper and even useable wood products. Not many of us can handle a job like Patriot is doing, but there are smaller ones that you'll come by.