Focus on learning words that are important to YOU and you would use. When language is meaningful we learn easier.

One of the best ways is to listen your favourite (English) music over and over again and try to transcript it . The point is to try to find words that you do not know. Afterwards, any times that you are listening to music the meaning of those words reminds to your mind .😊

Use wordUp app is good for improving your language words

You can use anki to help you.It is an vocabulary learning tools to help you remember some complicated words

Read books.