Become a Sick Nun

Before I became an immortal, they all said that I would not survive until I was sixteen. After I became an immortal, they all waited for me to die at the beginning of my Qi refining process. A little sick and weak female cultivator, at first she just wants to survive, and then she wants to live a better life, stepping on the bones of the enemy, step by step to reach the nine heavens! PS: No CP, plot-oriented and career-oriented