@Mas****
and just so you're clear about the year-long, multi-entry Non-O visa IF you could find a place to issue it. You'd have to exit/re-enter the country every 90 days on that visa.
I too don't know a single thai consulate in S/E Asia that will issue that visa for being over 50 (retirement).
That means you either get a yearly extension as you have been OR you wing your way back to your country and buy a year-long, multi-entry Non-Immigrant Type O-A (Long Stay) visa..