Alchemy and Demonic Way

As a monk who is good at elixirs and medical treatment, he actually chose to become a physical cultivator. He fought hand-to-hand while giving himself milk and blood. With the inspiration to help the world, he finally became a bloodthirsty demon cultivator in order to escape from countless reincarnations with his father. Reincarnation is full of variables. Every reincarnation is a rebirth of lost memory. What kind of variables can completely change a person? After a complete change, can he escape from his father's control?