i wish you luck.
my suggestions are fairly basic: crate train. start working on leaving them in the crates longer and longer each day. work on mental stuff (training for new things) prior to leaving, so they’re tired, and leave them with a stuffed Kong.
i would also go back to square one with the mix you mentioned, and i would invest in a corrective collar and the training to learn how to use it properly. (corrective collars, in this case, would be Martingales and pinch collars – no full chokers.)
unfortunately, the photo didn’t work. i would keep an eye on her, regarding the limp. if it persists more than a day or two, take her to the vet, and in the mean time, keep her on reduced activity. no jumping on things, no running.