In this chapter (chapter one) Janie's autonomy is not there because her Nanny is forcing her to marry a guy at such a young age. She ends up marrying the guy her Nanny told her even though she didn't want to.
"Yeah, Janie, youse got yo' womanhood on yuh..... Ah wants to see you maried right away."
In chapter 9 Janie burns her hair rags because Joe never let her do that and it also represents her passage into freedom and independence from his long and restricting relationship
"Before she slept that night she brunt every one of her head rags and went about the house next morning with her hair in one thick braid swinging well below her waist"
In the last chapter that a bout of melancholy settles over Janie’s room is not a sign that she has failed to reach her horizon. Rather, it allows her to demonstrate the strength that she gained along her journey.But the memory of Tea Cake vanquishes the sadness and fills Janie with an understanding of all that she has gained and become.
"Now, in her room, the place tested fresh again. The wind through the open windows had broomed out all the fetid feeling of absence and nothingness. She closed in and sat down."