Anne feels that her mother and the other adults are overly critical of her.

Anne has trouble with all of the adults in the Annex, except perhaps her father.  She struggles with both of the Van Daans and her mother.

I'm dying to tell you about another one of our clashes, but before I do I'd like to say this: I think it's odd that grown-ups quarrel so easily and so often and about such petty matters. (MONDAY, SEPTEMBER 28, 1942)

Anne thinks that the grown-ups are constantly fighting with her and messing with her.  They want to be actively involved in every aspect of her life, but she wants them to butt out.  Although Anne and her mother often argue, Anne’s mother defends her in this incident.

I agree that it's much better if a person isn't overmodest. My husband, Margot and Peter are all exceptionally modest. Your husband, Anne and I, though not exactly the opposite, don't let ourselves be pushed around." (MONDAY, SEPTEMBER 28, 1942)

Anne’s mother knows that she stands up for herself.  She has conflicts with Anne over this all of the time.  Anne’s mother tells her what to do, or comments on her behavior, and Anne argues with her.  If her mother is not arguing with her, then one of the Van Daans is.  However, in this incident Anne’s mother is defending her.

Although Anne was in an extraordinary situation, she really is just a normal teenager.  She has big dreams and a big heart, and she has adults in her life who care about her but drive her crazy.  When you put a bunch of people in close quarters, there is bound to be some pushback.  Anne used her diary to help her cope with the strain of the situation.  It was a friend who would never judge her.