Here I am again,  writing because I realized I've already focused enough my English practice on the two input skills: reading & listening. The other two skills, namely writing & speaking, are skills of output and, anyway, each skill needs its own field of techniques and practice. 

At the time, speaking is not going to be a skill for me to practice it in a daily basis, for reasons beyond this discussion. But I can definitely practice writing, and I feel it will help me a lot to bring up vocabulary and grammar, besides structuring my mind to express myself in English.