I'm going next week. Does anyone know whether they will accept my bank statement that's in Dutch? Or must it be in English? It clearly states the amount of money though
At the moment tourist visas can be converted into ED visas in country for other purposes like studying Thai. Good chance that it will be the same for your situation
Monks can get a 12 month ED visa. Usually this done at an embassy outside of Thailand. Best to check with your local immigration office if they'll be able to convert your current visa into an ED visa