I took a quick look at your save and here's what I see. First of all, check your preferences. Turn on "Always Wait at End of Turn."
It's 1200 BC and you don't have enough cities. It looks like you're playing the regicide game and maybe with accelerated production on? The first phase of the game is the expansion phase: settlers, workers and those that protect them (if necessary). You'll want to spread out fast but be careful of spacing your cities too far apart. The total area that can ever, ever, ever be worked by a city
looks like this:
uxxxu
xxxxx
xxCxx
xxxxx
uxxxu
Where C is the city, "u" is unreachable, and x is a workable tile. You'll often hear it called the "city radius" or the "fat cross." The
closest cities I see are at CxxxxC, which is the maximum spacing you can have without having tiles that will never be used. Even though you didn't space Rome and Cumae any further than you did, it will be a long, long time before you can use all of your available tiles. Your other city (Antium) is spaced off even further than that.
City spacing is very important and the subject of much debate. The debate is basically: do I waste tiles for part of the game in exchange for having hugely productive cities later, OR do I make sure all available tiles are being used early, for a denser empire in which there's lots of overlap later?
As you've got your cities right now:
- many tiles are not currently being worked
- many tiles will not be worked for a very long time
- military units have to travel a long way across your empire to protect a city
Honestly, I'd have at least 3-4 more cities in the area currently within your cultural boundaries.
Also, there's a Dutch warrior right next to Rome. I'd say whip a spear in Rome to scare him away. You'll lose a citizen, but you'll also lose that unhappiness problem in Rome.
You've got way too much gold for this time period. You've got >200 gold. After you whip the spear in Rome, move the slider down as far as you can while still getting mapmaking in 1 turn (that'll save you some gold). Then pick your next tech (I'd recommend math for the catapults), and crank up research as far as you can stand. Run a negative gpt to speed up research. Go talk to Joan. Sell her mapmaking & see if you can trade her out of a tech and some gold. You might also consider trying to bribe her into a war against the Dutch.
See if you can get your military units into stacks. You've got them spread out and they'll survive better and increase your kill ratio if they work in stacks.
Road the iron southeast of Rome. Hook it up to the whole empire and start building Legionaries. Then hook up the furs southwest of Rome for the happiness effect. Build more archers and warriors. You shouldn't need very many spears, if any.
Hope this helps. Good Luck.