It is highly recommended to have "Ancient Chinese Medicine in Circular Motion" on the Internet. After reading this book, Chinese medicine can get started.
You need to use your own brain in your study. You can't blindly believe the explanation of modern Chinese medicine. Read more Neijing when you don't understand it. Explanatory words are needed to study Neijing. All ancient prose should be understood according to the ancient meaning, not according to the present meaning!
When you understand that everything in the human body is yin and yang, you can get started without separating the human body from yin and yang and knowing that the human body is one.