I realise I may be barking up the wrong tree, but I'm really going to push what I said before - get her to distinguish between time when she's working (timer is running) and not working (timer is paused) by making that distinction explicit. Then, once she can see that she's taking 30 minutes pause vs 10 minutes work, you have a hope of her making progress. For as long as she doesn't make that distinction, and genuinely thinks it takes her 40 mins to do this work, there's no hope. I think.

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