Hi, Lucas, how's everything going? I'm brazilian, and although I'm not really sure about it, probably my English level is around B2 to C1, or B1 to C2. Whatever the truth, I'm planning to schedule my IELTS test in a couple of weeks, or maybe months (not decided at all), but I need to practice a lot to build confidence for my speaking exam. I can help you with Brazilian Portuguese, and would appreciate it pretty much if you could help me with English.
I must be honest: I'm not a language teacher, but I'm very well educated and polite (although I know some slangs too), and you would not get that plenty of grammar tips from me. However, I speak Portuguese pretty well and am totally able to give you some basic tips in this area, if you want so.
É isso aí, brô! Me chama aí pra gente conversar. Aquele abraço!