well, leraning a foreign language is definitely a hard work, especially when you have to parepare a exam. What would you like do to relax your body and ease your mine when you feel tied after the study?
I like jogging in the park. It makes me forget about problems and "refresh" my brain after work.
I can say only what I do to relax after work ;)
best way to meet friends, if possible
If not I try to go out myself or I do what I like best. I compose music or play guitar.
Or I do sport... As a variant I can go to the cinema.
The point is to forget about studying or work and do completely different things.