In that situation, if she was to fight back then she would be the bad guy ya know. They would play the victim like the bitches they are. She doesn't have any support from nobles and her brother is gone so like she had no one that could protect her even if she was to fight back. And like she explained she would get poisoned. I get where your going but just saying...
She has yet to go into society. This means she doesn’t have full power to influence the nobles thoughts and they may gossip bad things about her which would ruin her even more as she is currently a FEMALE without any powers. I indicated female because during this time period females never really have power.
If I remember correctly, she's not an entirely new person. She just remembered her past life. She's still the Adrianna who was abused physically, mentally, and emotionally. She's still the Adrianna with the trauma and all that. She just remembered her past life of being a commoner, and even then, her past life died early. So, her mentality wouldn't be affected so much. She's a little stronger and more mentally stable, and a few skills from being a commoner is all she got. And knowledge of the plot that doesn't really change her position of being a powerless noble lady with no one to help her. She can't even ask for help from the prince or any noble because she has to remain neutral until her brother comes back.
i cant continue to read this like i get you were abused but ur a whole different person so i dont get how you cant stand up to your step parent and sibling to protect the one thing left fr ok m your mom. Like no thank you. How are you planning to be independent if you cant catch those hands