Probably not, but we are here to help you :)
Yes, I appreciate it. :)
To be honest, a great deal of normal English conversation consists of slang and idioms/sayings.
Yes, I can see it here, one or two posters are sometimes incomprehensible.
And that is why they are so f***ing boring with that straight-from-school manner of speech
School materials, online exercises, class textbooks teach only High English. Each day I deal with a few sources which only offer texts like this:So, even though you study hard and seem prepared for the test, the tension you cannot control prevents you from completing the tasks well and withing the time limit. People suffering from this condition talk of their minds going blank on different exam questions. This leads to frustration caused by the realisation that your poor performance does not stem from your lack of intellect or exam preparation but from a stressful situation.
After 30 years of doing such texts, I have had no chance to acquire/get the knack of too many idioms. Also, I correct dozens of my students` papers a week and it is natural they don`t use any idioms. If they do, they try to copy Polish ones with poor results.
However, I always warn my students not to be surprised when they go to a native country and try to use their school English there, unless they speak to the Queen or other aristocrats.