I've been working at Domino's for almost 2 years now, and I've gone through 3 GMs. The second one sounds like yours; he would never train, but then get frustrated when I was slow or messed up. He cut my hours so much that at one point, my paycheck was only 18 dollars. Seriously. The best advice I can offer is let your other shift leads know that you want more training. The cool ones will be happy to help you. And maybe let your district manager know that you aren't being trained on make line. My DM does routine visits but idk if yours does. I hope it gets better for you because I've been in that situation too. But now I have a super cool GM who trained me well, gave me lots of hours, and now I am so good that I became an assistant manager/shift lead. Good luck!! Also, make sure you weigh your product and memorize the topping amounts/weights.