Here's a list of hotkey, mouse, and macro tricks that I've found useful in speeding up or simplifying routine aspects of Age of Empires 2. While they won't necessarily increase APM, they help me keep up with crazy moments of the game more easily, so hopefully you find at least some of them helpful!
Patreon: / spiritofthelaw
Background music from Epidemic Sound: http://www.epidemicsound.com
Game: Age of Empires 2 Definitive Edition, with Forgotten Empires, African Kingdoms, Rise the Rajas, and Last Khans expansions