What is Sopia's job in jail? What is her attitude and mental state?

Sofia works as a laundress while she is in jail. As for her mental state, she's falling apart, but more than anything seems to be losing hope. Her friends wonder if she'll get through her time there, but her inner strength wins out in the end.

"Sat in that jail, I sat in that jail til I near about done rot to death. I know what it like to wanna go somewhere and cain't. I know what it like to wanna sing... and have it beat out 'ya. I want to thank you, Miss Celie, fo everything you done for me. I 'members that day in the store with Miss Millie - I's feelin' real down. I's feelin' mighty bad. And when I seed you - I know'd there is a God. I know'd there is a God."