This is a standard Thai powerpoint. Older places may not support Type B - US three-pin then you need a three-pin to two-pin converter. As long as your device can accept 220 volts which most modern electronics will (things like hairdryers won't), you will be fine.
Relative to where you want to live in Thailand but the CMU course is highly regarded. No offense - this is actually a compliment - unless someone wrote your FB post for you, your English is fine.
The whole point of COVID extensions was for people who were having trouble returning home - it was never meant as a way to stay here long term when you can get on a plane and leave. Be grateful that you were able to get one.