Focus on building up your base early on. This means build all possible structures and upgrade your buildings as often as possible. The single player campaign gets difficult really quick and usually raiding other players in the Bronze Age is a risky situation, especially if you’re just starting the game up. So focus on building up the base, upgrading everything and only afterwards try to conquer and plunder. And don’t forget to take advantageof the free time boost that you get once there are 5 or less minutes of building time!