Often we learn things by sitting in front of a class or reading a book. Sometimes we are also given an exercise. This learning is only the first step and is more like allocating the knowledge in your brain. We must take our own action to really learn anything. This is because the exercises that are given are usually a means to an end to make you feel that you got to do something. In most cases when we need to do things again we will struggle. This struggle is very important.
Take action without being prompted and you will learn for real.