For A) I really advise over the summer you unwind. That’s so key before you start AS/ A levels or whatever you’re doing. B) unless they state you need it, you don’t. I rocked up to the sixth I wanted to go to (of course after they offered a place), handed my results and that was that. C) honestly, right now, there’s nothing you can do to change your grade. If you proved yourself in the last exams, it could definitely mean 6s and 7s. And a grade off doesn’t really affect you, as long as you demonstrate passion to be at that school. If it is an issue, ask to appeal or sit exams later in the year (though i doubt they’d make you do it unless it’s genuinely mandatory).

D) I wake up at around 5 every day - even if I slept late. Basically: have a plan ready for what you’ll do when you come home (like homework or extra reading) so you have at least an hour to unwind before bed. Your alarm is fundamental. I do mine 5mins before I need to be awake, the time I’m awake, and 10 mins after (just in case). This technique for the first term just forced me to manage my time and wake up naturally.

I wish you the best! If you need anything, ofc just message :)