if you don't mind me, can you answer me something? how did you learn english? (i saw it is not your first lenguage. I am using translator most time in this site.)
Oh, there was a time I used translator to do everything here ಠ︵ಠ
And no, i don't mind you asking :) first of all I'm a nerd an I get obsessed with things, i think that's how I learn anything. I learned both english and a little bit of japanese just consuming midias in such languages, like movies, songs, books and fanfiction... My brain works on association of topics so as more I like something more I assimilate it, that's why I study with things I have interest in.
My english got even better when I started to write too. And I also practice it verbally alone and with my best friend. It get easier when you star to think in the language you want to learn and that comes with practice.
Using translator or dictionaries isn't a bad thing ( ꈍᴗꈍ)
Also, portuguese is way harder than english so...