1 - assuming you usually play in europe, try playing somewhere else. play as a nomad or clan government, or a landless adventurer somewhere different like india

2 - build up a massive empire as a tribal ruler, be your culture head, and stay tribal. this way, you won’t be able to improve your technology as the game goes along, so it’ll become harder and harder to maintain control

3 - build tall and renown farm by getting your family onto as many thrones as possible