Where in the text does the author share a moment of raw honesty in Helen Keller: The Story of My Life?

In Chapter Three, Helen records an honest, upfront description of her frustration in trying to communicate and express herself with her family. She details this frustration and her reaction... the temper tantrums that increased in both regularity and intensity.

Meanwhile the desire to express myself grew. The few signs I used became less and less adequate, and my failures to make myself understood were invariably followed by outbursts of passion. I felt as if invisible hands were holding me, and I made frantic efforts to free myself. I struggled--not that struggling helped matters, but the spirit of resistance was strong within me; I generally broke down in tears and physical exhaustion. If my mother happened to be near I crept into her arms, too miserable even to remember the cause of the tempest. After awhile the need of some means of communication became so urgent that these outbursts occurred daily, sometimes hourly.