@Maxim **********
You obviously don't know the months in the year, or do not have the ability to count till 2.
I talked about the first extension in february 2025, that is where the counting starts. November is still in the same year and only 9 months after february.
When I leave I will start with a new entry, and therefore get the right for a new extension, but me leaving Thailand does not restart a year.
Your quote "the year END in relation to your entry" is ridicoulous, a calender year does not end before December 31, and a year long period does not end before 12 months are passed.
So in 2025 I can have an extension in the month February and again in November. That is in the same calendar year and also within 12 months.
How hard can it be to understand?
Besides this is one of the reasons why visa regulations normally do not speak about years and months, but only mention days.
There is no rule you can have one extension a year, you can have one extension for each stay which is 180 days.