Training is certainly useful, otherwise there wouldn't be so many training institutions in the market, but how much you learn depends on yourself. Training just allows you to learn systematically, without detours, and at the same time get in touch with the projects used in the market. Although I'm not saying that paying money is very powerful and I will become a technical bull, I will definitely gain something by studying hard and working together. If I want to know, I can look at the avatar consultation.