[Aristander]

I have only played 2 multiplayer games but my experience is that you must start taking areas by turn 3. Don't get me wrong I am not saying you need to take at least 1 territory every turn after turn 3. However should need to start.
Do not forget Mercenaries they can be a great help the first couple of turns.
Early conquest around your capital dramatically helps with money and resources.
The 10 provinces in the first year is a good guide.
Some players like to make their scout the prophet to help get a jump on expansion.
Most players crank up the tax rate and patrol with your army the first turn.