1. You can go to New Oriental for training, which should be professional.

2. Generally, the cost of learning this technology is between 2000 and 7000.

It depends on your province, and the prices are different in different provinces.

I suggest you experience it yourself, it will be better.

5. Go and have a look. If it is good, I am making my own decision.

6, generally study this 1-2 months, depending on your entry ability. Then decide for yourself.