You need to get vision on Europe which you can by buying maps for prestige . Then see whats up over there . Look to ally whoever is doing well to scare off the Ottomans from declaring . Hungary , Austria and the Commonwealth are really useful as they have an easy time siegeing down the Ottos european holdings and the Ai sucks at two front wars . is a post I made a few days ago about my current ethipoia game , maybe some of the info there will be useful . Though I got lucky as the Ottos were slow to expand . I never had the Ottos declare on me probably due to my strong allys in Hungary , Commonblob and France lucky PU over Austria . But you can scare them off and hold Egypt . I went Religious , Offensive , Administrative Quality so far . Just finished my second war with the Ottos and took a good chunk of the levant from them . Getting down to the gold mines in Africa fast is good for your economy especially with economic for the inlfation reduction . Also Zanzibarr node is easy to monopilise and is quite rich especially if your going exploration and can coloniseconquer Malaysia .