Hi there! I just received an A* in my A Level English, here are a few things that come to mind:
First of all, for your texts reading a LOT of critical material is helpful. I spent my free periods reading JStor or other academic articles about my texts, taking note of the ideas they expressed. These essays are usually of an undergraduate or above level, meaning that the ideas are mature and definitely worthwhile noting.
My second tip would be to consistently create essay plans- after you finish a theme in class, make an essay plan for that question. Ie if you have just studied gender in Wuthering Height, plan how you would answer a question on it’s presentation in the text. Doing this regularly is beneficial and will save you time in the pre exam period. I used to plan essays with another girl in my class once a week after school, and this was helpful as it meant we could share ideas.
Thirdly, make the most of your coursework. This is something that determines your overall grade that you’re in 100% control over. Start to read around some different texts that you could potentially use in advance, meaning that when the time comes to choose you’ll already know what you’ll want to write about and will consequently be prepared. Once it comes to actually writing your coursework, give it your all. It WILL take ages so start early and do not leave it to the last minute. Again, having read essays on JStor will be helpful when it comes to writing this too, as you’ll be able to emulate the style more easily.