Can I re-enter Thailand on a tourist stamp or do I need a tourist visa if I'm getting married?

Hi everyone, I need some serious advice..

I’ve been in Thailand a few times recently:

• Jan 16–Feb 8, 2025 (just a stamp)

• Mid June–mid July 2025 (just a stamp)

• Nov 29, 2025–Feb 26, 2026 (60 days + 30-day visa extension)

I’m planning to get married in Thailand with my Thai fiance, I was in my country’s embassy today and it came out that the document that I took from my country it is not enough (I didn’t make the stemple under the Certificate of Martial Status that I took from Poland, I should go to the Ministry of the foreign affairs in Poland and to Thai embassy in Poland before coming here.. ), so I have to do everything over again now trough the embassy here, but the problem is that I will have to wait 14 days from Feb 17 (my next planned visit there to complete the documents) and the bigger problem is that I can be here legally until 26.02..

so it means, I will have to leave Thailand and come back here when the documents are ready and then marry here.

I’m wondering: can I enter Thailand again basing on a tourist stamp or do I need a tourist visa this time?

Is it a good idea to go to the immigration office where I was making the extension and just ask them about it and tell all the information? 💀

Is it even a good idea or risky situation?

I have never had tourist Visa before here, so I don’t know it it is hard to get it. I was thinking about going to Vietnam to do it. I never did visa run away also.

Everything seems to be so complicated, but I can not live without my fiance anymore, not like this - that’s why i don’t want to go back to my country. I was trying to find a job here, I have master’s degree, but it is not a teaching season yet and they told me to wait until March/April.

Any experience or advice would be greatly appreciated! 🙏