Practice practice practice!
That’s the best way to improve.
For listening, watching English videos is a great way, if your level isn’t so high just yet, start by watching with subtitles in your own language, and then progress to watching with English subtitles(which also helps with your reading), and then eventually no subtitles.
Write a diary everyday in English.
Speak as much English as you can every day. Preferably with a teacher or a language partner. If there’s no one available, speak out loud and have conversations with yourself.
Reading children’s books is also a great way to start working on your reading skills. Look up any vocabulary you don’t understand take note of some of the grammar and sentence structures. Try and form your own sentences based on some in the book.
All the best!