Got "Terminated" by Werner for "Unsafe backing/driving" 3 months in. Am I just fucked?

This was last week. They brought me back down to their PA terminal for the second time for busting someone else's ABS light when backing into a Dollar General. Previously I bent a wheel rim trying to go around a light post (hit the concrete base, not property damage). That was on my very first day solo, and on a really weird parking lot. The guy who was talking to me about my ABS light incident brought up some recent footage of me passing a stop sign at a weird turn near the Terminal and that was it. After he called corporate and had me wait for 3 hours he took me back to his office to say I'm terminated. Never really gave examples on what more I did to get this. From the top of my head and with total honesty, I may have speeded quite a bit on highways or other long roads. Every other truck I saw on the roads were going that speed as well so I don't see the problem. There were often moments where I'd go under 10mph in cities and I go slow around curves or spot where I'm unsure. My trainer definitely wasn't a good influence. He's have the tablet, truck and sensor blairing at him for going 5 over (not to mention having his phone with tiktok on his dash). Pretty pissed at myself for blowing it on not at least getting a year of experience in before I happily quit because Dollar General sucks. But like, now what? I'm desperate at this point. Would love to do local Class B but I highly doubt I'd get that. I'm in New England.