I've Been Fighting All My Life, What's Wrong with Enjoying It?

Xu Xiu, the leader of the Zhongxing Dynasty of Daqian Dynasty, succeeded to the throne at the age of eight, determined to unify the nine states, and led his army to fight in all directions for consecutive years. He slept at midnight and got up at five. Finally, during the battle with the Chu Kingdom, he died. His body was taken over by Xu Xiu who came from time-travel and gained the system. The Minister of War: "Your Majesty, King Mi Bai of the Chu Kingdom in the east personally leads an army to invade. How should we deal with it?" The Secretary of the Ministry of Revenue: "Your Majesty, we have been fighting for years, the people are in dire straits, and the finances are tight. We really have no money!" The Minister of Rites: "Your Majesty, in the third year of my imperial examination, there are very few talents. How should we do it?" Minister of Industry: "Your Majesty, this is not possible, no, please stop." Xu Xiu, the leader of Daqian Zhongxing: "It's all trivial. Come on, let me teach you step by step!"