What Should I Do About My Two-Day Overstay in Thailand?

Hi all. I'm back 2 days later for some advice, unfortunately. I arrived at the immigration on what I assumed was my last day of my visa exempt entry. (Now in retrospect I wish I had waited and gone to immigration for an extension today when it opened after the holiday).

As it turns out I read the wrong stamp and I was to leave on the 8th of Feb and not the 10th as assumed.

So now I have overstayed 2 days and am pretty upset. It has never happened to me

To summarise my history:

* coming to Thailand for the last 2.5 years.

* I have had mainly visa exempt entries + a couple of in country extensions (2)

* I have been in Canada 2 months 1 year and 3 months the 2nd plus a month or 2 in other Asian countries

* I had 1 non B visa for the purpose of short business meetings for 3 month. I applied for a 1 year multiple entry but was rejected for 1 year so I came back in on a visa exempt after.being Canada 3 months.

* I am a long term Singapore resident with a working pass. I am employed as an admin consultant and do my work at home. My Singapore company has 2 businesses in Thailand. 1 in Bangkok and 1 in Pattaya.

* This was to be my last visa run as after having been denied the 1 year multiple entry Non B for meetings visa I was planning to apply for Non immigrant O visa based on retirement (50+ years)

* Now I am worried to get back into Thailand with the 2 day over stay stamp in my passport.

* I'm wondering whether to apply for 2 month tourist visa and hope to get in by air or by land- or just try to come back in by air or by land.

* Or is it necessary to get a new passport? Or does that have no bearing on my entry history.

* I cannot apply for NON O from Singapore as they are only for PR or citizens not those on long term passes or Employment passes.

* I know no one has a crystal ball but anyone had a similar experience and want to share who had the patience to read all this-would be very grateful.

* 🙏