Whatever method you decide, please continue with her training, either in a group or alone. There is nothing worse than an out of control dog, specially if they are on the large side. I have been very vigilant with our Malamute/Staffy, he is very strong and quite willful. From a very early age he was trained not to jump up (I have a disability so I'm in big strife if he were to knock me over), another one to start early is "leave it" and of course the usual sit, stay, come...happy training!