Looking at Unofficial mark schemes is really unhelpful, they're not even accurate and will just cause u so much unreasonable overthinking and stress. I'm assuming you've finished all your exams so it's best to just let go of everything. Once it's done it's done. Thinking about your exams and what you've written is not going to get u anywhere. Throw away and burn your A-level revision and notes, you don't need to focus on that anymore and focus on enjoying your summer instead. Thinking of your exams is only going to make you stress even more and it will wreck ur mental health, they're just exams and if you felt like u didn't do well enough, atleast you've tried and move forwards. I'm sure you've done better than how you thought u did. I hope you have a lovely summer and good luck on results day🤞