I also recall, at a number of points, being so homesick I cried.
This past week, I am still a fool in Hungarian. But I can eke out egészségedre (exclaimed when toasting) and am an expert on köszönöm (thank you).
And I haven't at all been homesick. That's mostly because of my hosts -- who have bunked me at their lovely home in the country (mosquitoes aside), kept me in three square meals a day (with dessert at every one), provided a nightly venue for watching the World Cup matches, and treated me like a second daughter.
I could say that being unaware of what is being said in 90 percent of all conversations might be disconcerting. But it's vacation. I have found it is more enjoyable to eat my home-picked arugula and homemade rice pudding, sausage, and cold cherry soup, sitting on the patio in the morning sunshine overlooking the rose garden and be grateful for good people.