Some 'Regressed to School Girl' stories involve a girl who, after an accident, wakes up in her younger self's body during her school days. This type of story often focuses on her journey of self - discovery. She may realize things she didn't notice as a child, like the true intentions of some of her friends, and also has the chance to correct mistakes she made in her past school life.
One common theme is the contrast between adult knowledge and childlike innocence. When regressed to a school girl, the character has the wisdom of an adult but is in a child's body. Another theme is second chances. They get to redo parts of their school life, whether it's improving grades or mending broken friendships.
I'm not sure specifically which 'girl regressed by mom story' you are referring to. There could be many stories with such a theme. It might be about a girl who has some setbacks or goes backwards in her development due to her mother's influence, perhaps in terms of her emotional growth, education, or social skills. But without more context, it's hard to say more.
One example could be a story where a mom is overly controlling. The girl used to be very outgoing and make her own decisions, but the mom starts to micromanage every aspect of her life. As a result, the girl becomes more timid and starts relying on her mom for everything again, like she did when she was much younger.
One example could be a story where a boy loses his parents in an accident and then starts to regress. He might start wetting the bed again, which he hadn't done in years. He also becomes very shy and withdrawn, similar to how he was as a much younger child.
I'm not sure of a specific novel with this exact title. But there are some novels with similar concepts. For example, in 'The Giver' by Lois Lowry, Jonas is different from the others in his community as he starts to gain memories while others are restricted. It's not exactly the same but has a bit of that 'apart from the rest' feeling.
I'm not sure specifically which 'girl regressed by mom story' you are referring to. It could be about a girl who has some form of regression in her development or behavior due to her mother's influence. Maybe the mother is overprotective and it causes the girl to become less independent or confident.
One great school girl love story is 'To All the Boys I've Loved Before'. It tells the story of Lara Jean, a high school girl whose secret love letters are accidentally sent out. Another is 'The Fault in Our Stars', which features Hazel, a teen girl, and her relationship with Augustus. Their love story is set against the backdrop of their battle with cancer. And 'A Walk to Remember' is also a wonderful one. It's about a popular boy and a religious school girl, Landon and Jamie. Their relationship changes both of them in many ways.
Rather than seeking such stories, it is better to look for stories about high school girls' friendship, academic achievements, and personal growth, which are more positive and valuable.
Well, there's a fanfic where Harry Potter mentally regresses to a child. It's called 'A Child's Mind in Harry'. In this fanfic, we see Harry's perspective change as if he were a child again. He starts to view the magical world with a new sense of wonder and also has to deal with the fact that his knowledge and skills are now somewhat limited compared to his normal state. It's an interesting take on the character.
One possible plot is that the mom is overly controlling. For instance, she decides every little thing in the girl's life, from what she wears to who she can be friends with. As a result, the girl loses her sense of self - determination and becomes more dependent, which is a regression.