There’s quite literally nothing other than fundamental advice people can give you unless you share a replay.

At least even tell us which civs.

Fundamentals are:

Scout. Figure out if your opponent is going greed (multiple tc) aggro (military production) or turtle (walls/towers). Punish accordingly.

Use markets.

Constantly make vills until 120ish.

Build towers on vulnerable areas of your base and also to establish map control and vision.

Coordinate attacks on one player.

Make units which compliment each other. E.g if you go knights and archers, team mate should try spears, horsemen. It’s also good to designate one player to go siege and one counter siege.

Don’t forget to mine stone and build a castle to defend sacred site.

Glhf