I've heard a good way to improve grades is to study/talk to people with higher grades than you. So I thought it'd be a good ides to start some sort of study group for students who are getting higher grades.
That's not to say that people who have lower grades can't join too, because the whole point is to share ideas and improve academically.
If anyone's interested just reply here. I do AQA English lit and language, AQA science and Edexcel maths (along w other subjects too ofc).