Lunatic beside the negative modifier , allows you ridiculous funny choices in event sometimes , so basically that is it .
If you have high steward , diplomacy and theology martial and theology stats , you can also has bonus options for event choices .
Lunacy in no way will affect your character from runing a country , just events are sometimes out of your control .
2 No , just read what the plot does , always read what the plot does .
Sometimes your courtiers try to do beneficial plots for you , so make your own moral if it is wise or not . .
You only see the str % of the succes chance , using autoplot it will always succeed given time (something manually sometimes has problems with)
3 depending who you want to play , for more immersion , I would say use the ruler designer create your own cathar religion , play in alto aragon in the pyrenesse (border france spain) as Duke and slowly expand by getting rid of your liege .
To understand how everything work , second venice is also quite secure from prying eyes and invasion .
If you are quite new to it , need to micro scale the options , but the republic might seem daunty for starters .
engeland is a mess in the old gods , the situation you can run in to being overwhelmed , makes it a headache .
But doable once you really understand the game .