I found it helped with the readback to print a template for the kneeboard. Now I just have some boxes to fill in arranged in the order which I will be given them, like this:
Date Taxiway Runway Cross Hold Circuit QNH QFE Wind
I just print a load of these on an A4 sheet and cross them out when used.
Where I train the tower are happy for you to sit in the corner for an hour or so and listen. I know you can't do this everywhere, but it helps to understand what everyone is doing.