That is the Bichon in her! Bichons are notoriously difficult to train, and rarely "get it" until 14 months of age. But they are delightful doggies!

Keep her confined to an area which is easy to clean up - like the kitchen. Keep setting out the paper, she will eventually get that bit. Keep taking her out every 3 hours during the day.

What do you feed? You need a high quality kibble; the grocery store brands will generate a LOT of poop as they have so much filler in them. Things the dog just can't digest and use. So out it comes!

What time of day do you feed? A good half hour walk 3 hours after a meal may help a bit.