You can totally eat your way out of depression. Beef suet. Works very well.
Sure, but you can't do well while you are not eating enough. You will get into a better university once your results are better, which means getting over the whole anorexia thing and having a long period stress-free and restoring your health and fitness - like taking up parkour. There is no law that says you can to go to university when you are 18 and not 19. I went at 19. I think it might have been an advantage overall.I need to do well at school so I can get into a good university. Otherwise I have no idea what I'm going to do next year.
What are you going to do next year? Well, you are going to need a good month's rest right away, once you are eating properly again. You will need a good long time away from school stuff. You can read some proper novels for fun. You can start a blog about yourself and how you beat anorexia. You can take up an outdoor exercise or a martial art. You'll enjoy that once you are feeling stronger. It is already June, so it is only six months until the school year begins again and you can have another go. You will have the perfect medical excuse. It is a medical problem that you have. You will need time to recover.
I can promise you I have had more stressful things happen to me in the last year than you have, but you don't see me cutting myself. You don't ever want to do something like that.Thanks but no it's ok, I used to cut more and then I stopped for a while and now I only do it when I'm extremely stressed.
If they don't know what to do they will learn what to do very quickly. Your parents already know, anyway. It is just a question of you and them getting on the same page so they can help you better. Once people have a plan to work on then it isn't stressful any more, it is a great relief.They're not worried about me because they think I'm happy and getting good grades. If I tell them anything I'm sure they won't know what to do and they'll either do something unhelpful or they'll just worry and I don't want to add more stress to their lives.
Go eat something, anyway. You need to to start feeling better.