I am quite worried by the type of people commenting on this thread. You are on a training course to be one of the best Air Traffic Controllers in the world. You will be looked upon by all the European States as being one of the best. Forget the holidays, knuckle down pass the exams and pass the validation, then worry about leave etc. Sacrifice everything for 2 years and you will have the 2nd most rewarding career in the world.
Please enlighten me to the first.