I Don't feel real ? Its kinda weird?

It seems you're experiencing after-school burnout. I myself become depressed after exams because it feels like a whole mess of pressure followed by a whole mess of empty time to think about it. You feel kind of spacey and your mood switches between sad and numb. Don't worry. It's normal, and lots of people experience it, though I know that doesn't make it any easier. It will go away gradually. As far as your marks are concerned, I managed to improve mine by cutting index cards in half and making a deck of flashcards on anything in my readings that seemed important. between 1-4 questions per card is good. If you get the card wrong just put it a little ways back in the deck, and if you get it right put it all the way to the back. This is a surprisingly fast way to remember details and get better at recalling them quickly during an exam. Also, read over every paper you send in 2-3 times, plus ask someone else for their impressions on it, because when you're "in it", it's hard to see the mistakes. I hope this helps :)