MC passiveness is infuriating, I would understand if she were a child but she is not and this is the second time she pass through this.
I know not all adults are emotionally mature, specially when they had problems in their childhood, but this is not just a simple adult, she is living trough her life a second time. This passiveness is not being an emotionally crippled adult, is being a stupid one for not taking advantage of, at the very least, some of the tools being in her situation freely gave her.
What’s happening here is what happens with most amateur fantasy stories nowadays, the author gives some amazing background to their characters just to throw it out the window and forget all about it after the second chapter. Why even bother in the first place!