Don't give up hope. Things are tough all round right now. I'm an HEO alumni just like you, times were a bit better when I got out though. School training, esp. PCT's can be a good way to get a foot in the door, but once you're there you'll still have to start from the ground up.
I'm not sure if Ben Eldred was still there when you were at PCT, but one of his things was always to point out that at school they teach ya enough "to be dangerous" yeah you can dig and grade in a controlled environment, but the guys that hire kids from PCT know that you still need to be molded to their company's vision. So times like now that added experience you have is what's gonna help, cause then you have some real world references to back you up.
I'm sort of tired and feel like I"m rambling aimlessly so I'd better stop now. Keep your chin up and good luck, things will get better, they always do:usa