The First Immortal in the Human World

I swallowed a golden elixir, and from now on my fate was up to me. After a short sleep, I became an immortal. What should I do in the future? Tease and tease mortals, toss and torment gods. I am in the human world, but I am called the number one immortal in the three realms. Wait, that one is you! The one who says that I am the greatest scourge in the Three Realms, don't run away, leave your address if you can, and I will visit your house tomorrow! Don't worry, I promise with my immortality that I will never take a single step from your family.