Hi, if you are a student studying overseas, the world is truly your oyster.
What do I mean by that? I mean you can do anything or go anywhere you want to!
That's an example of an English idiom you can use when you are travelling.
You are probably going to pick up lots of idioms during your trip abroad.
I woudl advise you to keep an open mind to new experiences, keep an English diary of new words and phrases, make new friends and take lots of photos!
You will always remember this time in your life fondly.
If you are a student abroad, you are truly 'foot loose and fancy free'! (That's another idiom, meaning you are not married or in a serious relationship and you have very few responsibilities or commitments.)
Drink, eat, visit museums, clubs, concerts. Give in to your 'itchy feet'!
Take care and have fun!
Zia