Hello Hazel, well, if I may say a few words. First, I would say that you look like a total newcomer on Italki. You have about 180 points if I remember rightly. That is very, very low. I guess you might wish to have a look at notebook entries in English (English being your mother tongue) and correct them, thus gaining a few more points. Second, you are obviously an educated person, but with little linguistic experience. If I were you, I'd try to gain more points correcting notebooks, answering questions, and, maybe, taking a few lessons of a foreign language (in your case Portuguese). 

From my point of view, as a former teacher of English and Dutch, I sometimes see community tutors willing to correct an entry, but adding new mistakes instead. There was even a "professional teacher of French" who grew angry when I corrected her mistakes in a notebook entry about, of all themes,  French grammar...

I do actually have a lot of experience of teaching, but you are correct that I have little formal experience of teaching languages, however i have ensured my children did not grow up with heavy Cornish accents. And have also helped a number of overseas Pharmacists with their English. Maybe, i need to expand on this in my profile.

I have been looking at notebook entries, but many are corrected very quickly and one assumes that too many corrections of the same piece of work, would get confusing for the person learning. Is that an incorrect assumption?

Thank you for taking the time to add your comments.