The Eldest Princess Ascended the Throne After Being Reborn

[Big heroine + rebirth + empress + revenge and scumbag + system] I am the eldest princess of the Li Kingdom. I was born to be favored by thousands of people. I am as good as Zhuge in literary skills and military prowess, and as talented as Xiao He in learning and planning. In my previous life, I worked hard to support my younger brother, who I raised personally, to ascend to the throne of God. Unexpectedly, after he ascended the throne, he no longer showed his affection and respect for me in the past, and actually poisoned me behind my back. Because I never set up defenses against him and he succeeded, I hated the northwest. When I opened my eyes again, I went back to the day when my good brother just ascended the throne. This time, I also want to sit on the dragon throne in the Chaoyang Palace However, one day, I suddenly discovered a thing called a system. What was going on?