Does she go and hide in 1 particular place? If so can you put the potty there for her and tell her if she needs to go to go in there?
We have lots of carpet too but we have setup a potty in the kitchen & in the lounge, DD will run around naked all day if she could (is that an option for at home) and seems to be going quite well with toilet training, it's when she has knickers on she's not 100% sure but she's getting there.