You are the oldest child of Sasuke, since Sakura wasn't your biological mother, and your grandparents, Fugaku and Mikoto were alive, along with your uncle Itachi.

Sasuke was home talking to his father, Fugaku, and Mikoto and Sakura were in the kitchen, Itachi was also in the conversation with his younger brother, Sasuke and his father, Fugkau. Sarada, your younger half sibling, was sitting in the living room.

(Your biological mother is Ameyuri Ringo)