Fellow Taoist, Run Quickly, I Have a Dual Personality!

Good news: I passed through the body of an immortal cultivator and reached the pinnacle of my life. Bad news: The original owner's soul is not completely dead, and merged with me to create another personality. Worse news: He thought he was some old monster who failed to survive the tribulation. The worst news: the "ancient secrets" he taught were all wrong. He asked me to practice according to his techniques - my spiritual energy flowed backwards and I almost ascended to heaven on the spot. He asked me to go to a certain place to get treasure - it was the lair of monsters, and I almost became a takeaway. He patted his chest and said that a certain senior "can be trusted" - but it turned out that they wanted to use me to make elixirs, and the firewood was all ready. Every time it was his turn to wake up, he continued to use his wrong perceptions to make enemies, owe debts, and break into forbidden areas on my behalf. Every time it was my turn to wake up, I had to take the beating, run for my life, and fill the hole for him. I want to ask silently, the roommate in my body is a scammer, can I apply for a refund?