Learn Something New
Research has shown absent mindedness is common in those with homesickness. Studying a topic or learning every day will keep your mind active. No better time than this to start learning a new language, how to cook every one of your host nation's favorite dishes, or begin that yoga/martial arts/diving course you saw advertised in your favorite coffee shop the other day. Also, the more you can relate this learning activity to your host country, the better. After all, you're here to immerse yourself in this culture, baby!