he said, he stays for 4 months. Most people get a 2 week vacation. The new official rules, 30 days (no visa) beyond 30 days, you need an extended visa, upon arrival.
I thought he needs to have a BA degree and a TEFL. Maybe even a few year's of teaching experience. Not to be rude, but a 2nd look at your FB Profile, I wouldn't hire you with your screen name and Profile pics. Not trying to be a ball buster, but you want to work in Thailand, and you're only 18.