It is not impossible to win, but when the colonization of the new world takes place, ideally i would want Castille crippled already, and i will have to fight a war on England's ground in the future too, in purely Byzantine meddling fashion 
I would want to annex Naples, but this would mean i would have to maintain another 20K army there, and currently this would be problematic, unless i expand in Africa to justify my 12K army there in a single provice

I would want to annex Naples, but this would mean i would have to maintain another 20K army there, and currently this would be problematic, unless i expand in Africa to justify my 12K army there in a single provice
