

Seconding Fate, the rules do a good job of supporting the fiction rather than encumbering it. I felt it very much supported that feeling of “I can do anything I can reasonably imagine.”
To help with the tyranny of the blank page, I’d recommend coming up with a pregenerated character to demo how it all works. Then, encourage her to change or adjust anything she wants to on the sheet. My players initially found it easier to modify something to their liking than to come up with something from scratch.
Magic can be as simple as “Roll your Lore skill” if you want or you can look up several more detailed add-ons that are out there, like Fate High Fantasy magic.
The rules are freely available here: https://fate-srd.com/fate-condensed.
Outer Wilds. Endings of both the main game and the DLC can still get me to tear up a bit. I saw a post somewhere, don’t remember, that said something along the lines of “Listening to the Outer Wilds OST is the only way I feel my feelings any more.” It’s about like that.