You just got your TEFL certificate. You’re feeling confident because you’ve received dozens of emails from recruiters who want you to come to their country and teach English to masses of impressionable children who will hang on your every word.
Congratulations, you now have to make a decision.
One option is to become what is essentially a neocolonialist missionary. You will reify English, and consequently Western culture, as superior. Another is to acknowledge your privilege and use a decolonizing pedagogical approach in your classroom.
Don’t worry — you don’t have to go with the first one because I’m going to give you some advice.