Two, three can't answer you.
4, visa 1 can come down within 3 working days, no conditions, you should be able to get a witness within 200 RMB, and the travel agency will help you. I don't know if I can buy it, I guess I can. Because Thailand estimates the consumption of foreigners, China people can apply for tax exemption if they spend more than a certain amount in Thailand (I can't remember whether it is 2000 or 3000 RMB). I don't know if your tax is charged here in China. It should be no problem if the quantity is not large. Several cities in Asia have special fares to Thailand. Just came from Hong Kong, and the round trip is less than 500 RMB. The consumption level is similar to that in China, and so is food and shelter.
There should be no problem with public security. Thailand encourages tourism very much, so it is very good for foreigners.
6. I don't know how to withdraw cash, but it's convenient to use a credit card.
I just went to Thailand the other day. If you have any questions, please feel free to write to me. If I knew, I would try my best to help you.
I didn't surf the internet some time ago, just answered your letter.