My two still have their hyper moments. I call it my yorkie tornado when they come rolling on through
I don't work on too much training other than potty training until around 5/6 months because it seems easier then. Ours just turned 5 months and we just started with "sit". so far so good
but the "stay" is going to take a bit as they do have short puppy attention spans.
My first one, who is now 2 years old, trained pretty easily. I used special treats that I only gave her for training so she had something to look forward to and work towards and I also avoided training anything she seemed too spastic.
Mid-morning seems ot work better for us with training.