Send villagers (1, 2, 3) to harvest sheep once houses are built.The new villager (4) created should begin harvesting sheep under the TC.
Send the other villager (3) to build a separate house.Remember to save room for farms around your TC. Send two villagers (1, 2) to build one house.Immediately send any found sheep to your TC. Your scout should be on the move, searching out domesticated animals (like sheep) and wild animals (like boars) near your TC.Immediately queue up as many villagers as possible in your Town Center (TC).
Most civilizations start with three villagers and a scout, which is what we'll focus on here. However, these are the basics to help you get to Castle Age in less than 17 minutes. There are multiple versions of the Fast Castle strategy out there, and you can certainly take these steps and mold them to your liking, especially if you're playing a civilization that comes with certain economic benefits.