Find out what is on your DAC, if anything.
The first company, you never made it past the pre-employment. You didn't drive a mile, or receive a paycheck, right?
That one is the most damaging, but if no record of it, I would treat that one, like a mulligan… and burn the evidence.
The 2nd, you own up to. It is one thing a driver has to know, you take full responsibility, regardless if you have someone helping you. No excuses.
I've had my rubs and scrapes as a company driver, and I know the tendency to want to find an excuse for why it happened.
apparently, the guy helping you back up that day, had a beef with the guy who owned the pick up.