Being Mexican is only a problem in America. I’m an Australian who lived in a the USA for two years after l retired from Australian Army. Mexicans and black people were my best friends. I’m retired now in Thailand with my Thai wife and family and l would invite you into my home anytime if you’re a good person. Thailand would love you to to visit the kingdom
My reading of the DTV 500.000 baht is close to the 450.000 baht to support a Thai wife in the kingdom. I understand you and your family are not Thai so health insurance for your family is required. The cost of this health insurance is totally up to you. Healthcare for my Thai family is very low. I’m 30 years Australian Army living in lsan Thailand.
Yes you are in trouble, you must report every 90, if you left the country without applying for re entry before leaving your retirement visa is cancelled when you leave the kingdom
Fly in visa exempt 60 days, any time after the first week go to immigration and apply for 30 days extension 1900 baht but will need 3 x passport photos and may need tm30 ( location paper work that is required by Thai law that accommodation provides do on your behalf on check in). This rule is generally not enforced.