Starting the Industrial Revolution in the Middle Ages

Reduced to being the sickly and incompetent eldest son of a baron? My brother is still secretly poisoning and murdering me? The territory was suffering from internal and external troubles, and was surrounded by powerful enemies. The Holy See and the nobles regarded him as a thorn in their side. This mess would be a dead end for anyone else! But what he brought with him was the ultimate code of modern industrial civilization! Start with blast furnace steelmaking: Say goodbye to scrap metal and build top-secret armor and line infantry! Dimensionality reduction to attack the feudal knights: with the sound of the cannon, the Holy See's sacred barriers instantly collapsed! Sweeping across Europe and even the world: agricultural reform, military-industrial hegemony, and geopolitical intrigue, fighting for the upper hand every step of the way! Some people call my rule tyranny? No, I just use absolute steel and force to redefine the world order!