The best thing you should do is try to listen and watch videos or movies, in English, without subtitles and at the same time read a lot, since that will help you maintain the vocabulary and grammatical structures that you have already learned and will even help you improve them.

The best thing you should do is try to listen and watch videos or movies, in English, without subtitles and at the same time read a lot, since that will help you maintain the vocabulary and grammatical structures that you have already learned and will even help you improve them.