I recruit several new customers on a monthly basis and the main reason given to me for changing is "lack of progress". To maintain my healthy pass rate, I recommend the following.....
Choose a lesson slot that you can keep to each week (keeping continuity helps speed up your learning)
Taking your lessons in two hour sessions is so much more beneficial than taking single hour sessions.
The majority of my clients take 2 hour lessons, but if you want an hour and a half lessons that is not a problem....it is entirely up to you, whatever suits your needs.
Ask your Instructor lots of questions (he loves helping you answer them)
If you have been learning elsewhere, you will be amazed at my modern coaching style of approach
Every lesson will have a definite objective, there will be no "just driving around" aimlessly
Regular recaps will be used to check your level of understanding
Learn Faster and Save Your Money With a 1st Time Pass.