Well my advice is when you finish each lesson, write down the important points that you learnt, and tips you were given. Otherwise you'll probably have forgotten them an hour later.
You will have a very high work load in the cockpit during your training, and this makes it hard to take things in and remember them. So write down what you do remember, and read them again before you go up next time. That way you'll make the most of what you learned already.
Hope that helps.