having trouble finding work

I have my cdl a with med card since 2011, worked for one month for knight,then in april 2016 went back to driving, for a guy with one truck, i told him i did not have experience he said you can figure it out, so i went out, had accident at shipper, (ran over the gate and fence), so i came home, thought i was fired, could not get ahold of the owner, anyway i have been applying to some of the megas they say they cant put me into training because i worked before and donthave enough experience. So im looking for a driving job now and someone willing to show me the ropes i live in southwest florida and im 63years oldd