They do mature. But if the puppy's exhuberance is getting people hurt, then you probably need to set some boundaries. I agree with upping the exercise and the training.
Instead of reacting to behavior, tell the dog what you want the dog to do. Before she starts a mad dash, tell her SIT, DOWN. Good girl, Go to your place! Good! Find your toys.
Exercise the brain and the body.
Maybe allowing this dog on the couch at this stage is not a good idea.
And they do grow out of some of the craziness. But you have to be patient, firm, consistent, and all that jazz. Continued training and good leadership and in another 8.5 years, she will be the best dog in the neighborhood.
Jenna, RN CGC & Babs, CD RA CGC HIC
Heidi, RA CGC
SG3 Odessa, SchH1, Kkl1, AD
Ninja, RN CGC & Milla, RN CGC
Joy, Star Puppy, RN CGC
Dolly CGC & Bear CGC
Hepzibah & Hannah