When I was still in Germany, ​​one day I had to take​​ the ​​Materials Mechanics​​ exam. But ​​I thought I was​​ not fully prepared, so I ​​reviewed the material​​ in the library ​​all night long​​. ​​In the end, I ended up falling asleep.​​ When I woke up, ​​I realized I had completely missed the exam​​.

That's a sad story.