Ming Dynasty: Zhu Zhanshan and My Glorious Ming

I transmigrated into the body of Zhu Zhanshan, the younger brother of the Xuande Emperor of the Ming dynasty and the legitimate son of the Hongxi Emperor, Prince Xiang of the Ming. Deeply trusted, he was put in charge of the country from the start. He made northern inspection tours and led southern campaigns, put down Prince Han, reformed the imperial examinations, punished corruption, centralized power, reformed the military and the system of princely fiefs, built firearms, reformed taxes, pacified Jiaozhi, and conquered all nations. I must lead the Ming dynasty to its peak. I will do my utmost to assist my elder brother, Zhu Zhanji, but it seems my brother only has ten years to live?