Threw in the towel on my mazdemundi campaign and started a malekith one. I can't really tell if it's just a much harder early game or if i'm doing terrible, heh. On like turn 65 atm, desperately trying not to go bankrupt and hold my provinces.
What regions / provinces did you get to? I usually stop my Mazda campaigns after being settled nicely and feeling like I've won the game based on that.
Based on this
map:
After conquering the Skeggi regions and making pals with the New World Colonies I take the province called Forests of the Viper. After that I expand west and south, the dark elf lands to the north are not good terrain for lizardmen.
After uniting these regions, keep an army to the north that can defend (or attack) against the darkelf faction, and you can expand / upgrade at your own pace.
The new world colonies are a solid ally, they can usually hold the south, and prevent nasty (skaven) invasions from the Scorpion coast. I prefer keeping them alive for a good while, they have never backstabbed me, and despite not expanding much they have no problem keeping 1-1.5 stacks around to fight off invaders.
I find building +growth isn't working as well for me as in the previous game. I prioritise an income building and walls in the minor settlements. If there is a special building available that usually fills the last slot, if not, I put something there that only needs settlement level 3 to upgrade to max level.
Income from trade agreements grows over time, so I try to get easy trade agreements early game. Even if it starts out at 59 gold / turn it can grow into 1500 gold over time.
When I see a rebellion is going to happen, I move an army towards the capital of the province to squash the rebels. This generates income, experience, and a large bonus to public order, its far more efficient then turning off taxes and trying to race the rebellion with +public order things.
Hope this helps.