The Ancestor of the Han Dynasty, What's the Difficulty in Reviving the Han Dynasty?

As the first commoner emperor, Liu Bang was undoubtedly outstanding. But there are always people in the underworld who question him, saying that he became the emperor by luck. After all, Liu Bang himself said that in strategizing and winning a battle thousands of miles away, I am not as good as Zifang; in controlling the country, pacifying the people, paying wages, and never cutting off the food supply, I am not as good as Xiao He; in defeating an army of millions, I am not as good as Han Xin. These three are all outstanding people, and I can use them. This is why I conquer the world. So Liu Bang traveled through the late Han Dynasty with his memories of his life and time. He wanted to see how difficult it was to unify the world!