Do a little research about where you're living and find a few places you absolutely have to explore -- the ten best coffee shops in the city, the favorite locations for local street artists or all the different places you can go kayaking. Make a list of these places or activities and challenge yourself to do/see all of them before you leave. This will give you something fun to do and keep you focused on the next adventure where you are, instead of dwelling on what's happening at home.