Keep listening to things that are in English. This could be anything from movies, to TV shows, to music.

Keep practicing your writing. Use English as much as you can when available. For example, keep posting on this site in English.

Keep practicing your reading. Read sites that are in English or have an English option to switch to.

Speak A LOT to a native speaker. You can try speaking to an advanced/fluent English speaker, but I think you'll be safer with a native English speaker.

Good luck! :D

in my opinion there are many steps to do that

1- listen and listen and listen (( there are many videoes on youtube can help you))

2- practice on writting and grammer on your class and here

3 -practice on speaking by talking with native people or language partner

Hello in my opinion, if you want to be good at speaking or reading and writing, you should listen to A J's lesson or explaination in youtuber and talk with American and English they can help your English and can improve your English skill as soon as you want and you should write or look Grammar so much too because of when you will write a letter or something to your friend then you will use Grammar and so wish you are be best soon

Practice all the time and forever

I am trying to watch movies or TV series with english subtittles or without them, also you can try to thing only in english.