I have an 81% in english

any tips

Answer: Take your time reading the instructions, if you are writing an essay read it to a relative and ask them if it is good. Check your grammar. etc

Write up lots of notes, even if they don't seem important. If anything sounds like it should be something you need to learn, or have to know, make a mental note about it and add in your own words of what it would be used for.

Other than that, I would recommend buying an audio recording thing from Amazon or something rather, and ask your teacher if you can record what she/he's saying, and then you can just re-listen to what they said whenever you'd like.