Cultivation on the Verge of Death

On the verge of death, I was bound by a cold "survival trial". There are no attribute bonuses, no mall gift packs, just one cruel rule: Starting from a baby, in the troubled times of continuous wars and starvation, he lived for a hundred years, died at a healthy age, and at the same time spread his branches and leaves, leaving enough heirs to open the door of "cultivating immortality". Give up halfway? Even if I am extremely wealthy and powerful, in reality I will instantly turn into a cold corpse. When I finally survived a hundred years and opened my eyes again, I became a swaddled baby again. This time, I have to survive three thousand years of brutal fighting alone in the world of cultivation where there are many sects and the weak eat the strong. The system won't save me, and it won't give me any shortcuts. I only have one life and one chance. Survive and return to reality with three thousand years of cultivation; Death is the true end. And when I really stepped back to reality, the world had just passed three days.