@Giang18
Hello Giang, and congratulations on becoming an Airbnb host. You will find that hosting can become a wonderful part of your life just as it has for me and many other contributors here.
You will find that every stay makes you want to do just that bit better for the next guest! But don't get disillusioned if a guest doesn't give that 5 star review that you are so proud of every time. There will be good hostings and not so good hostings but, don't dwell on the bad, concentrate on the good. I have met some of the most wonderful people on this planet and I am sure you will too, but just keep your feet on the ground, keep your local Airbnb contact phone number handy and learn as much about the rules of Airbnb hosting here on the CC and via this link.
https://www.airbnb.com.au/help
You live in a lovely part of the world Giang and we so enjoyed our visit to Nha Trang, be proud of what you offer.
Good luck Giang and if ever there is anything we can do to help...we are here to support you!
Cheers.....Rob