Feel free to consider this part of the Pony POV Series
Sunset Shimmer gets some therapy after the events of the Make Your Own Magic The Starswirl Do Over book. She was caught in a timeloop, a REAL timeloop, unlike Princess Twilight, and it was a lot, lot, LOT MORE than than just say six or seven. She isn't going to get over that in one afternoon.
https://tvtropes.org/pmwiki/pmwiki.php/Literature/MakeYourOwnMagicTheStarswirlDoOver
https://mlp.fandom.com/wiki/Chapter_books#Make_Your_Own_Magic:_Starswirl_Do-Over
"Also keep in mind, I'm going off TV Tropes on this."
MLP:FIM Copyright Hasbro
Vector by Sugar-Loop.
https://www.deviantart.com/sugar-loop/art/Bashful-Sunset-Shimmer-Vector-683185279