I Just Want to Survive! but the Land Was Torn Apart and the Country Was Founded

Single female protagonist This era is not recorded in history books, but it has brought together the deepest despair in history! The vassal towns of the Jin State were like wolves, with their troops self-respecting and separatist, but there was scorched earth under the iron hooves; the royal court of the Southern Han Dynasty was intoxicated, the wealthy families were stinking of wine and meat, and bones were frozen to death on the roads; Wu and Yue were in a corner, struggling to survive, unable to withstand the wind and rain; the Song Dynasty seemed to be a glorious state, but it was deeply trapped in the whirlpool of feuding families and party disputes. The high temples were full of selfish calculations, and no one cared about the common people! And the people? Life is like an ant, and life is like grass! It is not a rumor that people change their children but eat them. It is normal that there is no rooster crow for a thousand miles. In this era of collapse, don't you want to fight? Just waiting to be crushed into clay! The coals of fire have stepped on the bottom of your feet, and there is no way to retreat! Instead of being killed at the slightest provocation, it would be better to... Split the earth, open up borders, and recreate the universe! The final chapter of the troubled times will be written by an outsider himself!