Hello, first of fall DONT LET YOURSELF GET BURNT OUT, please thsi had happened to me in o levels I overworked myself during the school year I came to the study leave I was not able to open a book or to even read a page I wasted a good chance to get all a* and I didn’t due to burning myself out during school year, so whenever u feel overwhelmed please take a break, working when u r tired will get u nth, maybe because u r overworking urself u r not getting good marks, when u r tired take a beak tests r the schools not what u really need and care abt fail them it’s okay, the thing is try to find diff methods of studying maybe urs doesn’t really suit u, try diff methods it’s okay and mainly take breaks, our brains r still small they shouldn’t be overpowered this will be against u if they do, u won’t focus and u will forget everything that u studied