I trained in his home last year and was admitted. Of course, it is inseparable from our own efforts. In fact, I think it is necessary to find a training institution for training. Watching training videos at home may not be enough, and even if you watch them, you may not be able to grasp the key points. If a teacher doesn't understand, ask, sketch out the knowledge points and try to memorize them by yourself. There are more questions to do. It is possible to build a department. The teachers are all invited teachers of the research group, and they are all quite experienced. I hope it can be adopted! !