Should you accidentally learn books and review exercises, more. Where you do not understand, you should ask your teacher and then try to find the practice coming more or read about the knowledge you learn.
You should carefully review the books and try to exercise more. Where you do not understand, you should ask teachers. Then try to do more exercise, or read a book on the knowledge you learn.
You should study hard and try to review exercises more. Where you don"t understand, you should ask the teacher. Try to find the exercises to do more, or read about the knowledge that you learn.