As soon as you can, advance to the Castle Age.Recruit two more villagers and put them on gold.This will give you a fall back when you run out of sheep, which you should do shortly. Set the two villagers back on wood until you have enough to build a mill by the nearby berry bushes.But if they aren't poking at your borders yet, we recommend these steps: If your opponents are starting to encroach and you have no defensive or recruitment-based landmark, it might be worth building a barracks. Once your villagers have finished building the landmark, you should already be well on your way to advancing to the Castle Age. If you're trying to win via wonder, we recommend prioritising landmarks that are either defense, such as The White Tower, or that can also act as recruitment buildings. Use your two lumber villagers to build the landmark.
By this time you should be ready to advance to the Feudal Age.Recruit two more villagers and have them build a lumber camp.Set the three new villagers to mine gold.When the first new villager appears, have them build a house, then a mining camp by your nearest gold reserve.Send your scout to gather more sheep while waiting, and whenever you have a free moment.Command your six villagers to harvest food from sheep.
