Wonderful, I am glad for you! Wouldn’t it be much simpler for the designers if everyone had the same preferences/taste?Not really? I'd consider a "successful" game to be when you reach the historical borders of your nation. Anything above that is gravy.
FYY a successful game for me is when I am having fun playing a game that I like, the way I like and that was pleasant and “rewarding” before nationalism was in-game. Nationalism turned the way that I like to play the game into a click fest nightmare without adding anything good or plausible to the game, it did not make the game harder only tedious so my solution will most likely be to stop playing it unless these issues are addressed.