After Rebirth, I Will No Longer Give in to My Twin Sister

In my previous life, I gave up the opportunity to go to college to my twin sister. I worked hard to earn money to support my family, but when I got sick due to exhaustion, I was rejected by my whole family. My sister took me to the richest man's house and sent me back to my hometown. I couldn't survive the cold night in late winter. After my rebirth, I ranked first in the exam and became the pride of everyone. Bai Yueguang and Xiao Chen went to university in city S to pursue me. My sister was so jealous that she went crazy and stupid, so I sent her to a mental hospital without mercy.