This review contains spoilers!
At its peak this is an imaginative and fun story, though I’d say the beginning and end are a little perfunctory.
The idea of a hormonal teenager having the power of a God to decide “what happens next” is compelling and leads to a series of entertaining and unlikely scenarios. There is some strong world building.
The alien at the end comes from nowhere and is especially silly. But that’s Doctor Who!

15thDoctor
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