Number 5 can be a lot harder than people think! You get this idea that when you're immersed in a language, you'll "just pick it up" like a linguistic softball that just rolled up to your feet. I just started taking Korean classes because I'm embarrassed that after two years here, I can't have a coherent 5 minute conversation. And immediately after I began studying it, I felt this resurgence of affection for the country! Interacting more and more deeply with your chosen culture is key to finding happiness. Great post!