Yes, she has a very teenage mentality.
Someone earlier in the thread posted part of her New Year's resolution list from 2018. Here is the full version.
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I was clearing out my childhood bedroom recently and found some diary entries and to-do lists, and some of them sound very similar to Alice's to-do list.
Except I was a teenager when I wrote them, and she was in her late 40's when she wrote this...
Interesting how there's nothing about getting a job/making money or anything to do with self-improvement (apart from the wish to lose weight), the latter which you might expect in a New Year's resolution list. And even more bizarre is the fact that she chose to share this on her Instagram.