Hi, these Italki English/Portuguese speaking language partners can be contacted by you to set up a practice time. Be aware of time differences between countries. Go to: http://www.italki.com/partners/1-Portuguese-English200-00-0.htm You can also learn English using Portuguese as your base language here at Italki. Go to: http://www.italki.com/knowledge/learn-English-Portuguese.htm

It's writing for sure ...in each language writing is a big challenge ..you can produce in your mother tongue but in other languages you need a long and a hard practice before you will be able to write your thoughts and to express your feelings ..it's too difficult but not impossible ...by reading and reading you will better your writing skills ..listening is a very easy task that's why we always start learning by a listening lesson we never start by writing ..so listen speak then read finally write ..good luck

for me, listening is more difficult. but I found writing and reading by every language I know easier.