Second day!

I need to improve my english, but I don´t know what to do!! In May, I am going to study in Australia and need to learn fast/quickly.

Entiendo! Learn the most common verbs and words that you use every day now and you will start to pick up English little by little. It is working for me with Spanish and English. Good job bro!

Second day!

I need to improve my english, but I don´t know how! In may I will go to study in Australia and need to learn fast

I am going to study in Australia and need to learn it(or english) fast.

The most effective way is to actually talk to someone in english. You need to study grammar and say phrases, but for it to really be effective you need to converse. 

For example I can understand korean but can't speak it well. When I am talking with someone suddenly my mind forces me to say phrases i've picked up from my parents because it recognizes a pattern. Funny because I've talked informally all the time to the elderly and offend them haha. 

I meant to say Spanish and Portuguese. LOL oops