2, the general cost of learning such a technology is probably between 2000-7000

3, it depends on the province where you are, the price of different provinces is also different,

4, or suggest that you personally go to the experience, so it will be better

5, go to the test! a bit, if it is good, yourself in the decision.

6, generally learn this 1-2 months, depending on your ability to get started. And then decide for yourself.