But how do you even judge that? You have a dataset of n=1 with no control. Besides, wouldn't you expect to learn 'more effectively' with a young adult's brain than a pre-adolescent one, particularly if you were getting the right level of attention from a teacher and the pace of study was being accelerated as you moved through primary and secondary school?
To be clear, I am not against "learning", quite the opposite. I want children to learn effectively.