Regardless of whether it's Chinese or Western medicine, trying to learn well solely through self-study isn't feasible. One must have a teacher to guide them.
Someone like Lin Wanwan, with her limited skills as a barefoot doctor, can only handle emergencies. If she manages to heal someone, it's purely luck, like a blind cat stumbling onto a dead mouse, using the right medicine by chance, as she did when saving Xiao Chong.
Learning Chinese medicine is extremely difficult. She thought she had just begun, but in truth, she hadn't even scratched the surface.
If Lin Wanwan truly wishes to pursue the path of a healer, she should quickly pack up and follow the old immortal Sun Simiao, at least studying with him for another ten years before she can graduate.
The brief stay in Qiantang is absolutely insufficient; she would need another golden opportunity of enlightenment to have any hope.