What should I do if my Thai visa application is delayed just days before my travel?

Most Thai embassies advise applying at least 15 business days before your planned travel. Some say longer, but I've never seen any Thai embassy recommend less time.

19 January is 14 business days before 8 February, and the count normally resets if they ask for additional documents. That means 21 January is 12 business days before 8 February.

On top of all of that, most Thai embassies in the world have been very busy the last 2 weeks with mailing out and processing Thai absentee ballots for overseas Thais that are voting in the current election. They are prioritizing this over foreigner visa applications.

That means it's very possible you will not receive your visa in time. The only option you have is trying to contact the embassy and asking them for expedited processing. But other than that, you have no options because you do not qualify for visa exempt or visa on arrival.