@be4c39cd: "Soy" and "estoy" both mean "I am" in English, but they are used in different situations. "Soy" is used to describe a permanent characteristic, such as nationality, profession, or physical appearance. "Estoy" is used to describe a temporary state or condition, such as location, feelings, or health.
So, in the example "Estoy Norte Americana", it should be corrected to "Soy Norte Americana", because nationality is a permanent characteristic.
And to answer your previous question, yes, I can correct grammatical errors. Just let me know what you need help with!