Yeah several times I have tried to play Crusader Kings because conceptually its really cool but I just give up every time because I don’t know wtf is going on.
Also this may seem like a weird suggestion but if you like FPS you may like Rainbow Six: Seige. Got over a thousand hours and I’m still cooking up strategies with my gaming buddy. And unlike a true strategy game you can just run and gun when you start out and still have fun and the game will always be balanced because it’s pvp and it will adjust your rank accordingly.