Resources Are Scarce, so I Rely on Elixirs to Become an Immortal

[Mortal flow + system + reality of human nature + muffled development + rigorous logic] Gao Jianshen traveled to a world of cultivating immortals with poor resources. This world was enslaved, dominated and blood-sucked by other powerful worlds. And the local high-level monks occupied the few remaining pitiful resources. Gao Jianshen awakened the ability entry of the alchemy genius and was able to refine elixirs of perfect quality, but he struggled to find the herbs. There is none in the city, nor in the wild. People said that they were taken away by the senior officials of the sect. He had no choice but to hunt poisonous insects during the day in exchange for food to survive, and kept planning at night. He, whose Five Elements spiritual roots are all ninth-grade low-level spiritual roots, how can he cultivate to the highest level step by step in the cracks.