Why did daisy Keith kill herself?

Daisy Keith, a fictional character from the book "The Bell Jar" by Sylvia Plath, struggles with mental illness and societal pressures, leading to her tragic suicide. Her feelings of isolation, despair, and the weight of expectations contribute to her decision. Plath's portrayal emphasizes the impact of mental health challenges and the stigma surrounding them, illustrating the character's profound internal conflict and pain.