This story will go along with the plot of the SERIES, not the movie.
(I also may add some things from the comics as well)
Yes the same events will occur but in a different way as to make room for our female avatar here.
I'd like to say this is a slowburn but not really at the same time
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"Darkness, chaos, alone. I was alone.
That is all I remember, that feeling.. the one where you have nobody.
When you have no control over yourself, it was scary, frightening really. But I couldn't stop it.
I was afraid, of what? I don't know, it was beyond my knowledge.
All I remember is the anxiety, the guilt, the fright, and then darkness."
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Also some information on the MC:
• Right now she is 13.
• She is, 4'8 or 142cm compared to Aang who is in fact 4'6 at this point in the series. (All their heights above are canon btw- like their all so small it's craZy)