Let's start from what you want to know. Your curiosity enhances "motivation" and boosts the learning cycle. For example, if you read (1.1.2) Modeling and abstraction and want to know the difference between lists and tuples in Python, you can look for explanations about it and read them. It is the approach: "start from what you want to know."

If you have some concrete thing which you want to make, it is a chance. If you start moving your hands, you find what you want to know a lot. By gradually eliminating it, you can learn while maintaining high motivation.