I wouldn't say you could learn it quickly but a quicker way would be to have a bit of the language you're learning in your day to day life. Watching english shows with subtitles, listening to english songs, attempting to read english books and so on; making notes of words you don't know will help you remember. Doing this will make it easier as well as having good english exercise books and a teacher or friend whom can help you. Good luck !!

The simplest and quickest way consists of these essential elements: 1. a diligent pupil 2. a good teacher 3. good learning material