It is an undisputed fact among scientists that individuals, groups, and peoples are subject to the same Darwinian laws of natural selection as plants and animals. Social Darwinism has proven that the strongest among us survive, and the weak must suffer what they will. I, a magecraft sorcerer, now have a legitimate policy to justify my imperialist actions. To accomplish this, I steal the lives of individuals by sucking out their souls and consuming them into myself. There, they will suffer excruciating torture for an eternity while I realize my noble ambitions of manifest destiny.
The suffering of countless innocent men, women, and children being robbed of their lives as I steal their souls provides for the most exquisite torment. It also extends my life and provides fuel for my sorcery. As a result, I have managed to extend my life for many centuries, robbing the innocent of their worthless lives while making myself more powerful. However, The hundreds of thousands of souls yelling and screaming all at once is at risk of driving me insane.
Hearing so many voices can make me lose sense of self, leading to schizophrenia. I may also confuse one of those soul-personalities for my own. This constant puts my self-identity at risk. I need to continue absorbing souls to extend my unnatural life, but at the same time prevent them from taking me over or causing damage to my own mind. How can I accomplish this?