I have been driving for four years now. When i was learning to drive i found it difficult to take in everything at the same time.
You are concentrating on what you are doing and your divo DI is barking instructions at you to do this and that.
Dont get in to much of a flap and after your lessons think about what you did, what your DI said and spend the time in between your lessons going over that in your mind.
When you have your next lesson you will feel more confident as you are mentally ready for it.
Good luck and dont ever feel disheartened.
I didnt pass first time, passed on my second.
I have driven about 150,000 miles since passing my test and loved every mile of them. Apart from driving to Devon last July, (it took ages!)
Good Luck and best wishes for your test.
