what were the most difficult times of Helen Keller's life?

Some of the most difficult times in Helen Keller's life were when she lost her sight and hearing at a young age due to an illness, struggling to communicate with others before learning sign language, and facing societal prejudices and discrimination against people with disabilities. Despite these challenges, Keller's perseverance and determination allowed her to overcome these obstacles and become a prominent advocate for the rights of people with disabilities.