How do you create a Dynamic Material Instance on an Inherited Object?

Omg I just realized I am a complete fool who should stop smoking so much ■■■■■■■■■

I have been trying, I swear to god, for 3 hours now to try and “Get Light Intensity” like its a normal variable, instead of “Set Scalar Parameter Value”, holy ■■■■.

Sorry for wasting everyones time