read Stick and Rudder and really understand what is happening.
I personally found this book boring, very repetitive.
I think most beginners PPL don't have too much problem mastering stick and rudder - the main issue lies in decision making and principles of safe flying. If there is any supplemental (apart from typical textbooks) aviation reading from which I learned most it is this small rather inexpensive book, you learn best from other pilots' grave errors:
