I've got a round-trip ticket from the US to Thailand for a total of 220 days (to study and train Muay Thai). I've been clicking links and emailing in circles for weeks trying to figure out this VISA process. I'd like to obtain a non-immigrant visa somehow. The closest I've gotten is "The Royal Thai Embassy, Washington DC" and the page that states the different types of visas and where to mail the documents, fees, etc. but I'm not sure exactly what to apply for.
Any advice is greatly appreciated. I have 30 days before my flight (May 19).