There are a number of excellent exercise pens and baby gates to help limit your dog's access to things that are just too challenging. Here's a link to the Amazon exercise pen search page.
Providing a mat for your dog creates a clear visual reference for her "Parking Zone". You can use a bathmat, towel, or blanket, or you can buy a commercial dog mat, such as the Mutt Mat modeled by Joyful Dog's Flim Flam here.
Here are links to some of our training handouts, to get you started building helpful behaviors: