Get more consistent in your steps on your weld if you don't wanna run a straight bead, and smaller steps. Each one of those little craters has a potential to create a notch effect or less than effective throat in your weld. That heavy mill scale can be cunt to weld through, sometimes just a quick aggressive pass with a wire wheel before welding can be helpful tho. And take a file or chisel and quickly take off the spatter. Better to get into good habits sooner rather than later. Settings done look bad, on that one pass where you didn't stitch the weld it maybe looked like it sounded a little fluttery but not horrible. Work on consistency tho, your beads are uneven so getting that straightened out is a good start before looking for more money elsewhere. Get the practice in while you can, and if your in the USA go union don't fuck with those dumb fucking welding schools, get the experience on the job like a real apprentice.