I actually went to trucking school because a local long haul trucking company offered to pay for my CDL training. After I graduated from the school, I had to apprentice with a more experienced trucker before they would give me the better paying long haul trucking jobs.
I hate to admit it, but I didn't last very long as a trucker. I found out I had an undiagnosed heart condition during a company physical and they couldn't clear me for road work. I helped out with dispatching and other office jobs, but I never did get behind the wheel of my own rig.