Yeah, all18wheels, I have days like that too. All in all, though, I enjoy it mostly.
I have one thing that's killing many opportunities for me, but also may be my way to a different career, when I'm ready for it. I'm a 23 year old disabled veteran, with a messed up lower back, who can't do much heavy lifting. That local job everyone's always after simply isn't possible for me, as I can't handle the physical labor.
My back problem cost me my last job with Roehl, and shot me down before I could even get in the door with a dozen companies.
BUT...I found another OTR gig that I enjoy. And at the end of the day, I realize you can either go through life bitter about everything that you're NOT getting or doing, or you can simply enjoy what you DO have...