Hi, I just thought I'd chime in here with my views. I absolutely love A level English lit - I took a bit of convincing by my GCSE teacher to get me to pick it - it was a late decision and I hadn't spoken to anyone at my sixth form about English because I convinced myself I was a STEM person. I also had (and still have to an extent) some imposter syndrome surrounding English as I went from low 6s-7s at GCSE to a 9 (lit) and an 8 (lang) in my GCSEs so I convinced myself I wasn't going to maintain those grades, however I found the jump from GCSE to A level so manageable because of the work I put in in y11. Anyway, fast forward to now, picking English lit was the BEST decision I made re: A Levels. I do bio and maths so it is a brilliant balance to those and a way of making me think more creatively.
As the poster above said, coursework is so much fun, and from what you've said, I think it would be a great part of the course for you! English is my "fun" subject, the one where I genuinely love every lesson and really don't see it as a chore to revise! Best of luck with picking your options!