You are already one step ahead by being in an English environment. The rest is all attitude.
Start with baby steps, don’t be discouraged, start with something you like.
I’d suggest watching shows that you like:
Cars: top gear / grand tour
Nature: bbc documentaries
Youtube: joe rogan/other types of talk shows.
Music: listen to English songs on spotify with lyrics mode turned on, read the lyrics
Only English subtitles allowed. If you don’t understand something, pause, google the meaning. Make a note - write down all the phrases you don’t understand.
But again, the first step is not to be ashamed of poor English. You will get better.