After Returning from Cultivating Immortality

I, Hu Han, have been practicing hard for thousands of years from a desolate and frustrated young man in the past of the earth to an invincible immortal king in the world of immortality. After breaking through the realm of the Immortal Emperor, due to an unstable state of mind, I was struck by the Nine Heavens God's thunder and returned to the earth. It took me a thousand years in the immortal world and one year on the earth. Let's see how I can take revenge, but why is it different from what I thought!