Immortality: Starting from Being Poisoned

My name is Yang Zhu, and I traveled through time accidentally. Now I am very panicked because I was forced to be poisoned by my master. In order to survive, I can only become a cultivator. Except for a few golden pages, there are no magic weapons, and no one to guide the way! Entering the path of immortality alone! Yang Zhu: Ahem, I'm a little hungry, so I have to find a way to get some food.