Ada sounds like she is being a normal GSD pup. Busy, exploring, not wanting to be held back. Plus remember, you have had her only 4 days. Right now she is still in this new place, with this new human, big changes for a young pup.
Begin building the bond between you with training and play. Look up engagement on here, do a search for Micheal Ellis and engagement.
Read through the full puppy sub-forum on here. You will be amazed at just how much information you will find.