I know this may be a difficult situation and can get frustrating, but please try very hard not to shout around or at Dolly. I think it really does take time to learn and adjust to a new environment and new family, especially at 8 yrd old.
I can only suggest what has worked for me so far in terms of feeding and pooping.
1. When I am away, I limit the space of my second one who is not potty trained. This was how I trained my first one, in order to prevent ANY accidents. I used the crate training method; if the crate doesn't work out for you, then xpens are next on the highly suggested list.
2. First thing when I wake up, I take them both our for potty break (6ish).
3. I don't free feed and I don't suggest you do either. In the morning, I put out their dishes of kibble in the washroom with me while I'm getting ready. I do this because they also don't eat unless I'm around (and my mornings are too rushed to get ready first and then sit and watch them eat after). So, this is their time to eat. Once I'm done in the washroom, all food is taken away. While I'm at work, I leave only a dish of water and no food (they each have their own water dish).
4. Because my second pup is going through potty training, I have someone take her out for potty break halfway during my work day (11am-12ish). Afterall, it's impossible to keep a puppy in a crate an entire day and not expect an accident.
5. When I get home from work, quickly I take them both out for potty break (4ish). And then they eat dinner. I only feed two meals a day and usually dinner is served usually before 5pm or 6pm.
6. Around 8-ish I take them for potty break. Then, all water is taken away. And then again, before bed at 11-ish I take them out for potty break.
So during this potty training period, they have a total of 5 potty break each day and at regular times. They eat at regular times. It's the regular schedule that will help you and help Dolly make sure she poops at a regular expected time. If she's in good health, she's not too old to hold it. I believe it's just because all of this is too new for her. You need to set her up for success in a new routine. You'll need to stick with a similar strict routine if you want no peepads and no accidents at home.
Note that this was my routine when I potty trained my first pup and he's completely potty trained and has free reign of my home. He took about one year to be fully house trained. Since Dolly is older, it make be quicker or it may take longer.
Whatever you do, just please don't shout or get angry at her. This all takes time. And if she's already scared, she needs your love, patience, and care a lot right now
