Don't worry, european portuguese is also a problem to many brazilians, as we are not used to watching/hearing portuguese media.Mother tongue is American English, pretty strong in Mexican Spanish and Brazilian Portuguese, but I falter with Caribbean and Rioplatense Spanish and European Portuguese.
English and Japanese, which lets me do my current job as a J->E translator.
Bro, got any good books/resources for someone who wants to get fully fluent?
I'm assuming Lucio was the motivation?
I take it you don't live in Japan? If at all possible, it is best to find a Japanese friend to have regular correspondence with. I think that helped me just as much or more than my studies did in the end.
A secondary motivation. I learned of capoeira's existence from Lucio (when his relevant skin dropped) and began seriously practicing. Regardless, it's an unspoken expectation that as a capoeirista, you learn Portuguese on top of everything else. So I do my Duolingo lessons to keep in my master's good graces lol.