Adopted by a Murderous Duke Family

I don't think every protagonist has to be a genius, but this one is just infuriatingly stupid in the most crucial ways for the plot.

Below is explained what I mean, the spoiler is for the first two-three chapters, but I still marked it as one.

Since she was abused because of her power before time regression, this time she decides to hide her power. Except she does that in THE MOST stupid way possible, showing it to everyone BUT her new family, the people who actually want to protect her.

Here is the spoiler for the 22nd and 23rd chapters, which ruined it for me.

The body possessed by one of the antagonists is locked up inside of a cell (which is a plothole by itself too btw, since he should be able to possess other people according to what was said before), but Tauriche goes alone with her contracted star to see him without ANY reason to do so, gets too close to the cell for some wild reason, and then her contracted star gets captured by the antagonist, who suddenly takes it hostage and starts making demands. Why did she go there? Why did she get too close to the cell? Even if she's stupid, her contracted star lived far longer than her, so it should've known better too. So once she realized that she's in trouble she immediately went to ask for help from her family, right? Wrong, she kept everything a secret and released the antagonist. At this point I decided that she's too stupid to be kept alive.

Another blonde ML