I thought there would be something to do, but the Always War premise is very difficult to overcome. After 10 turns it was clear I was not making a big impact on the game so I kept playing.
To keep with the sprirt of the game, I stayed in AW. I played the first turn just as they did and got the exact same result as you see in the last pic.
I played it to 50 BC or so. I have been down to a one city challenge for almost the entire time, holding Bangalore. I have 3 catapults, an archer and 3 spearman. Been having to do a fair amount of whipping. I am probably taking out 10 or more enemy units for every one I lose, but those pesky Gallic Swordsmen withdraw at one hit point, and they are usually not stacked so I can't send my archer against them. Then they heal up and come right back. I really think the Celts inability to realize that they should not attack across the river is really helping me, as most of them are coming from the west.
I know the AI is into the middle ages as some of them are building Sun Tzu. Not too likely this can be saved, but I may try some more. I can't even build techs since I need to save all the gold for unit support.
My goal is to get a GL from an elite spear. This is remote I know but I can't see how else I could get out of the city, with units from all the civs converging on me every turn. This would allow me to get out another city. Once the second city is set up with 3 spears, 3 trebs and an archer then I could build another, or try to take one of mine back.
I have definitely learned a little bit about AW on pangaea. If I were to start this over, there is no way I would move that settler off a hill. That cow looks awful tempting but the problem is I need to survive to take advantage of it. In this map layout I would say there is no point building workers since your tiles are going to get pillaged anyway. Build walls, barracks, units and settlers. Keep to yourself as long as possible since once you meet someone the war will start. Build defensive units and catapults. If you want swordsman build the city right on the iron. But I would not waste shield on them. Rather build more defensive or bombard units and let them come to you. The only place that might be worth building on is horses, but since the technology is not available that is not an option now.
Behind walls and with barracks you are bound to get some promotions. If I could get three or four cities set up like Bangalore is now I would improve my chances of getting a leader. I would also have an area in the center that might have fewer enemy units and I could pick off the redlines with archers in there, getting them up to elite also.
As far as the other civs, the Sumerians showed up and I did not declare war on them right away, so I probably ruined the AW premise right there. No matter though in about 2 turns someone got them into MA against us. The Chinese were wiped out by someone so at least I was able to outlast them.