One thing that made a significant difference for me was choosing the right accommodation. I came across this article with some valuable tips for booking the perfect holiday apartment:
https://beforeitsnews.com/travel/2022/12/top-3-tips-for-booking-a-perfect-holiday-apartment-2498334.html
Following those tips helped me find a comfortable and affordable place to stay, which ultimately saved me quite a bit of money.
I hope you'll have the chance to visit Thailand and Vietnam next winter. In the meantime, enjoy your time in Mexico and keep exploring ways to make the most of your travels!