Just checked out a few more chapters in the RAWs, but no spoilers so I won't talk about that.
Truthfully I think this MC is an impulsive muscle-head idiot. She's been granted this wonderful chance at a second life after dieing and she doesn't know how to treasure her own life. In a new unfamiliar body (different height, weight, muscle tone, etc.), new world with unfamiliar cultivation or knowledge of possible enemy powers, and brand new family too. Now a smart logical person would lay low, get familiar with the new body, new cultivation system and enemies and then take action. Instead this MC decides to start picking fights left, right and center. It's only thanks to her great luck, and MC Plot armor that she hasn't lost her second life while she's at her weakest. Therefore... impulsive muscle-head MC who charges forward without considering anything.
As for her new family.... they need new brains. Yea.. it's great she returned back, but with her 360 attitude change and new skills.. you'd think they'd figure out something's wrong.
Oh, and if you want to see pretty pictures, google 嚣张狂妃. Don't know why they translated it to 'peerless concubine', it's actually 'Arrogant wild princess'. Now I'm fully aware that 妃 can also be translated into wife or concubine but it's all in the context, and I'm pretty sure that this arrogant woman won't accept being a concubine at all.