So if i understand your post she has good days and sometimes bad moments when she gets over exited. I am glad she is intrested in toys and that you can work with her with the toys. And after all dont forget she is a pup and like somebody else said she does good with people and does not show serious agression. And sometimes i realy believe that when you stay consequent and not loosing your temper (shouting,being mad or scared) stay calm so you dont loose your position in the pack she will grow over it. I realy believe taht the biggest mistake is loosing your temper because than you show that things are out of control.