Hi Annabelle,
I'm new to this Big Paws thing too; our GS is only 3 months old. Repeat after me, "The crate is my best friend"!!!
I can't believe I ever tried to housetrain dogs without a crate! Agh!
Keep track of how fast your girlie grows because you just won't believe it. She'll be putting paws on the counter by the time she's 3 months. And the barking quickly gets deeper and more threatening-sounding, so try to teach her the command "quiet." (At least, that's what I'm working on with Atlas right now!)
Good luck and let us know how it goes!