And do consider crate-training her, if you don't have a crate, this can still be accomplished by designating and blocking off an area to be her "crate. If all else fails, the bathroom can work, though my brother's dog's "crate" was the space under the kitchen table, blocked off with a child' playpen/baby gate. Put a nice dog bed in there (a pile of old blankets will do nicely), a couple of toys, and make it her place to be when you aren't there to supervise ...

She is still new to your home and family, and this is a big adjustment, it may take more time, so please don't give up on her, okay?