English ain't my first language but things like "a new way*s", " a year teaching in the **in the* public sector" and " I can definitely say that since I started been using a more" would make me recommend a spellchecker, to begin with, but given that your introductory sentence also has a typo in it, I can't help but wonder whether your keyboard might be broken. In any case, using languagetool.org or grammarly already goes a long way.