First, you are missing a verb. What did Alison's repeated criticisms do to her sister's self confidence? Perhaps they "affected" it or "damaged" it. Repeated criticism can certainly have a negative effect on a person's self-confidence, so perhaps that is what the sentence is trying to express.
She didn't
No
The cast of Alisons baby - 2001 includes: Alison Lapper as herself Parys Lapper as himself
alisons informatics
Courtney Alisons twin sister
in the 4th book mona is a because she finds alisons diary in a pile of alisons old stuff that was getting thrown out because Maya was moving in. and since the girls and alison where so mean to her when she was dorky, she wanted revenge.
2 allisons...twin sisters
because she knows that a wasent mona ant that it was alisons twin sister
when mona and Spencer get to fighting and mona falls off the cliff alison becomes a mona is not the real a she had alisons diary
Alisons Real Name Off Of Pretty Little Liars Is Sasha Pieteres
Alison is not a real person, she is created so that members know how to report people's pages if it becomes necessary.
well she has everything she needs to know from reading courtney's diary (alisons twin) to get revenge on them.