Anybody know this manga? Help me find-

I can't remember the name but basically the FL lives with her mom who is kind of abusive and she reincarnates or something of the sort and at some point somewhere in the beginning she goes to the temple to meet a duke (probably of the north) and she offers him an alliance and basically calls herself a useful tool or something

I'll add onto this: Before she went back in time the FL was basically a tool used by her brother or fiance or something but eventually when she lost her use he cut off her tongue and I think her limbs too and then the Duke found her like that and basically she ends up deciding to help the Duke because of her guilt since basically the brother or fiance was against the Duke and there was an entire war situation or whatever.

She ends up basically gnawing at her tongue and drawing a spell circle on the ground with her blood and activates it and dies and goes back in time.