Revenge on My Impostor Sister

In my past life, my sister schemed against me, ruining my dreams. She took my name, and my family scolded me. Reborn, I returned to the night before the physical exam, planning my counterattack. My biased parents protect her? I'll make them pay! No one will take away my dream of wearing a military uniform! I will tear apart my manipulative sister, kick away my bloodsucking family, and take back the glory stolen from me a hundredfold!