The courses of training institutions should be more in line with the market demand, and generally good training institutions are more targeted in small class teaching. Training institutions will have a higher and more professional entry threshold for teachers. Training institutions will provide some learning environment, project practice, employment services and research channels to improve learning efficiency more systematically and efficiently, and learn from shallow to deep in stages. You can teach yourself, but it will test your learning ability and self-control, and it also depends on your own needs. If time is not tight, you can try it yourself.