Oh no, sounds like 2hours was too much for her! I think the shorter nap was working better.
I had to nap cut with DS and he was on a 1hr/1hr 15mins nap by 15months. But then it stayed the same for about a year before he was ready to cut it down any further. So nap cutting at this stage doesn't necessarily mean they'll cut it out totally any time soon.
So at your DD's age, DS slept around 1-2.15. He always had to be awake by 2.30 or he wouldn't settle well by 7/7.30pm. So if he took a while to settle at nap time I'd still wake him by 2.30 at the latest so some days his nap would be shorter than others but 1hr 15mins max and this worked well for him.
Maybe something similar would work for your DD?
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