@ Arilian. I chose peace and lasted the course. I wasn't last in score, but (unfortunately) neither was I first!
@Godotnut. I am no expert (I lost this game) but made a broadly similar start to you, although you managed to grab Petra! I would focus on city growth (build aqueducts rather than try to complete Tradition) to boost bpt, keep the AI warring with each other by bribery and steal as many technologies as you dare. Research Agreements have high yield on Deity so try for the Porcelain Tower and make sure to keep culture ticking over to get some high-end beaker-generating Social Policies (not so easy on Deity as cultural CS are grabbed by AI:- the Patronage policy that increases base influence is good here, but you may be too far into the game to divert for that). I would firmly commit to either Diplo or Science goals as soon as possible (doesn't sound like others are viable options). Very best of luck, sounds like you have a fighting chance with Petra.
@Godotnut. I am no expert (I lost this game) but made a broadly similar start to you, although you managed to grab Petra! I would focus on city growth (build aqueducts rather than try to complete Tradition) to boost bpt, keep the AI warring with each other by bribery and steal as many technologies as you dare. Research Agreements have high yield on Deity so try for the Porcelain Tower and make sure to keep culture ticking over to get some high-end beaker-generating Social Policies (not so easy on Deity as cultural CS are grabbed by AI:- the Patronage policy that increases base influence is good here, but you may be too far into the game to divert for that). I would firmly commit to either Diplo or Science goals as soon as possible (doesn't sound like others are viable options). Very best of luck, sounds like you have a fighting chance with Petra.