Actually I can understand english speechs in a intermediate range of contexts (daily conversations, science, history, etc), but I can't understand fast speechs or different accents of english (like the British accent when it's so strong).

My vocabulary is extremely limited. I know the 300-400 words most common in english, but I don't know the name of objects (I just know the most common objects, like pencil or chair) or other things.

I can't speak in english in a articulated way. My pronunciation is so bad, I make a lot of mistakes and actually I can't feel myself confident in the english conversations. But my portuguese is extremely articulated, not in pronunciation, but in vocabulary, grammar conceptions and other things.