You're still only allowed 2 30 day stamps per calendar year in your passport. My question is was my first today until 23 December be the next one, after that will be January a fresh calender year so straight 2 times after that's ok ?
TLDR : Answer Summary
The current regulation allows a foreign national to receive a maximum of two 30-day visa stamps per calendar year when entering Thailand over land. After utilizing the two stamps in November and December, the user inquires about receiving two more 30-day stamps after the start of the new calendar year in January. Comments suggest that while January does reset the count, travelers should be aware of possible scrutiny from immigration if they frequently enter on 30-day stamps. Additionally, it is advised to have more than six months of validity remaining on a passport when traveling to avoid complications.