Hi!
The game is already in English.
You need to select it when you first log in, and English should be among the language options.
Alternatively, you can click on the button that says “switch language” at the bottom of the screen while the game is loading.
If you accidentally selected a different language, this is what the button will look like: "сменить язык" / "змяніць мову" / "змінити мову"
Hope this helps! If you have any questions, don't hesitate to ask!😊