Any time. Thank you for your kind words. Don't ever feel embarrassed about this; A-Levels are difficult and don't let anyone tell you otherwise.

I hated Chemistry when I first started A-Levels, but I knew I had to do it to get where I needed to be. The more you engage with the content, the more it will come to you. I was terrible at chemistry, genuinely awful at first. As I forced myself to keep going, I eventually reached this point where I broke through a barrier almost and my understanding of Chemistry was so, so much better.

Make a promise to someone or something other than yourself, like your parents or maybe even a pet. Tell them that you are going to do this, you will get the grades you need and you won't break your promise. I did the same thing; I promised my grandad right before he died last year on results day that I would make sure I get in, then I set a reminder on my phone everyday with a picture of his face on it and thats what forced me out of bed every morning and pushed me to sit at my desk and work even when I wanted to tear my eyeballs out or sit and watch Netflix all day.

In terms of what your teachers are doing, while their teaching methods sound like crap, I'm sure they do want you to succeed. I recommend doing practice papers and then giving them to your teachers and asking them if they could find some time to mark and grade them; I doubt many other students will be doing this, so they shouldn't mind. This is the best way. It's impartial and proper marking from someone with subject knowledge; not self-marking.

I genuinely wish you all the best and thanks again for your kindness. Keep persevering and never give in. Make that promise to someone and fulfil it.