Hey Naem,
Very sorry to hear that as well! But like Naraic said, you're only 22!
Maybe you could tell where it went wrong in the interview..
Offcourse you can call for feedback to Eurocontrol! They will give it to you.
I allready passed the interview but for other people still in the selection process it might be good to read!
If you find in hard or do not want to talk about it I understand offcourse!
Again, very sorry to hear it! If it's really your dream to become an ATCO you'll make it work!
Best Wishes!