Another update. I had to do 11 turns this time, cause the next turn is Civil War (I passed the turn already) and I want to save it for the next post. I ditched my previous idea of making peace with Boii as soon as I saw that their Capital doesn't have any walls and become my objective. So, first of all the most interesting part, some stats and future plans next:
Turn 41

Turn 42

Turn 43

Turn 44

Turn 45

Turn 45 (they DOW'ed me and won't sign a peace treaty after 77% and 86% rolls)

Turn 46

Turn 47

Turn 47 (my client state for food and fleet, as well as the perfect place from where I will launch Greek invasion in the future)

Turn 48:

Turn 48 (showing my civil war prep, 2 real 10+ unit stacks with elephants and noble cav and 2 light cav + Gothones Heavy Infantry in the north, where civil war stack spawns risk is low):

Turn 49:

Turn 50:

Turn 51:

Turn 52 (Carthage in flames):
Some graphs to show how I'm doing in economy, culture and Legacy departments compared to Suicidal AI:
Tip: we start to focus HCV after the initial pop growth/building priority. You want to get all your regions to 6 citizens at least before paying any attention to culture. Culture buildings will be growing your stockpile meanwhile, since you are going wide.
Think about buildings in terms of extra pop, e.g. farm with bonuses is equal to having 2,5 pop on food and the cost is less than growing extra pop if we funnel all Production Points to build it in one turn, while other regions can spread out between growth and culture without building anything. Remember that PP spread evenly across all build queues in the Province (100 PP towards 1 bulding or 25 PP to 4 at the same time), while Food spreads unevenly and prioritizes region where it being produced.
HCV.

Legacy (we will be draining 400+ points from Carthage soon and getting to the 2nd place even without that next turn):

Pop growth is priority as in any 4x game. Switch to culture/science later:

Just some history to showcase exponential growth.

Diplomacy map. From top units roster we don't have access to Armenian Cataphracts (Pontos, Kartli and Seleucids splitting province there and all of them our allies), Britonic Warbands (province split between 3 fractions), Comagene Cavalry (Antigonids and Comagenians splitting it, both hate us), Galatian Infantry (Antigonids and Pharphagenians, same deal here), Indian Chariots (they hate us), Lugii Noble Lancers (Gothones should be destroyed soon by our friends), Sarmatian Cataphracts (they constantly lose that one province..):
What is my checklist for the next turns?
- Deal with civil war and try to not fall into Decadent state too early (proly Dynamic Difficulty starve me on objectives on purpose for the last 10 turns to force Old Age);
- get Sardinia, one region in Spain and drain 400+ Legacy from Carthage;
- invade Greece with civil war stacks and Egypt with Carthage stacks at the same time;
- help Belgae to survive civil war to finish them off later in the game;
- get bunch of fun units from the other nations and get Peace Treaty with Arabs to attack Seleucid's through their territory after crushing Egypt (about 250+ Legacy) and Kyrene (another 400+ Legacy points)
- finish off Rome after Greece conquest. Let them grow more to get more challenging fights. Diplomacy allowed me to control their resources so far, but they are Young Empire now anyway with exactly 10 regions.