Here's how my first attempt went :
I attack Aetolian League early and take them out, next I move against Epirus but Makedon declares war on me, I leave a small force in support of Larissa to guard against Athens and move my main army against Appolonia, Epirus and capture the city, then I move my main army against Macedon, at this point I am ignoring public order as I was sure I can take it down later but then a plague starts and my armies stop reinforcing, my garrison is devasted a public order just deteriorates fast. I survive one siege assault by Athens but on a second I lose my much-depleted army and the city and while this was happening Epirus managed to bring another army from Italy as Rome wasn't apparently fighting them and took back Appolonia. Then Athens released Larissa as a new faction and it immediately starts with a 12 stack army.
Now three armies are moving against me (One of them highly depleted) against my capital Pella while I have a 4 stack army with no money, a rebellion that is about to break, in a nutshell I don't think I can save this from here.
Any tips in context of this campaign, what I did wrong and what should I had done?