It will take at least a year. Oh, it's really good. Now let's talk about "different methods are suitable". I suggest you buy a copy of Huangdi Neijing, a basic work of traditional Chinese medicine, which many people have studied for ten years!
Download: /ldgxt
Or Houpu Chinese Medicine School: /hopeinstitute
Or you can listen to it repeatedly on China Radio Network. r.cn/option，com_content，task，category，sectionid， 1 1，id，57 1，Itemid， 479.html