DO IT! This is most likely the only opportunity that you will have to travel with little responsibilities. Also, it is a great resume builder!
Pack light. When you are going from airport to airport and train to train, having to carry a bunch of luggage can be very tiring and make your traveling experience less exciting.
Travel around. Don’t just stay in the city you are studying in. Go experience other cultures and get a feel for how different parts of the world live.
Take a relatively “easy” course load. You don’t want to spend every waking minute doing assignments, studying, and being in class. You need to have time to explore the city you’re in and travel around.
On the other hand, go to class! It is just as important to learn in the classroom as it is to learn outside of it.
Eat the local foods. Even if you are a picky eater, like myself, try something new! You will be surprised at how much you like new things.
Call home, but not too often. Keep your friends and family updated on your well-being, but don’t make yourself homesick by always checking in. Life in Louisville will continue while you are away.
Bring a small trinket from home. For those times if/when you do get homesick, having something from home can help you get past it.
Have a budget. If you go without a budget, you will spend a TON of money. Budget out trips, food, housing etc., and try to stay with it.
Have fun. This is an experience that will change how you view yourself, others, and the world. Learn all that you can and just have fun and enjoy it.