I took a look at the game Mari, and found that you picked some very unusual Oponents that make the game significantly harder than it could be imho. For example you picked Charles and Sitting Bull, which are both Protective, making their Archers or even LBs and XBows much stronger, then you have Industrial Civs in it like Ramesses, Financial Civs like Wilhelm (being Creative too, worst Combo imho!) and Wang Kong (being also Protective *uargh*) and you got the full scale of Top-Warmongers like Monty, the Greeks, the Mongolians a. s. o. And where the heck is Mansa? How are you supposed to get techs by trade if the Romans get -1 to -2 on relations from the start and him being not there?
I think your next game would be A LOT easier if you picked these opponents:
- Asoka, Ghandi, Justinian (peaceful Religion developers, no trouble from them, easy to conquer)
- Cyrus, Frederick, Elizabeth, Joao, Lincoln, Mehmed, Napoleon, Suleiman, Catherine, Peter, Washington, Victoria, Sulei, Zara Yaqob (all not real Warmongers and more peaceful, especially the Americans have been extremely weak in all of my games, Cathy and Sulei can be a threat but they're still far better then Alex or Monty)
- Brennus, Isabella, Hatty (Religion developers that can easily be bribed to war against another Civ, make them your friends)
- Take one Extortionist, bestly Genghis (as he's IMP so his cities will give many GG's when conquered) and you will wonder what will happen in Diplomacy (EVERYBODY is gonna hate him more than you, cannot get better, and you got someone you can easily bribe in addition)
- And of course Mansa Musa, you need that tech-trade-whore!
This is a handpicked list of the imho weakest AI's against the Romans who can't found a Religion, you will have no PRO, you won't have IND either (makes getting Wonders and Failgold even easier), you have few CRE (so don't worry about

) and you will have a hate-target for everyone that can even save your ass when bribing him against someone who wants to DoW you!
Think about those.
Greetz, Sera
P.S.: As you can only take 17 opponents for HoF I would leave out Cathy, Zara and Hatty for being CRE or Sulei, Victoria and Victoria for being strong.