Thank you for all the answers! I'm also a private candidate so super keen to get help. Im doing Psychology edexcel.
One website that helped me a lot is Tilf! They give you a mark and feedback on your psychology essays for AQA, like a teacher and from what I saw on trustpilot they have great reviews. Even teachers are using it. It's not free tho that's the downside. But the quality is worth it.