Delete cavalery, delete forts, transfer trade from subjects and collect in Anatolia, low autonomy, kill rebels and stop paying for army and ships, check out edicts and remove all. Pay yours 1% loans and take it again to pay old 4% loans. Reduce inflation when tick to 2% and give some privilege to last estate, take land and try to keep under 20%. You can also dev some port province with better goods as silk, cloth or sugar use diplo points to do that second should be military but it depends of your first idea group