Help help helppp gcses

YALL PLEASE HELP IM HAVING A MENTAL BREAKDOWN. IS IT TOO LATE TO START REVISING?? I HAVNT STARTED YET. AM I COOKED? OMG OMG OMG HELPPP. CAN I STILL GET GOOD GRADES?? AIMING FOR ALL 8s AND 9s CAN I EVEN FINISH ALL THREE CONTENT BY THEN OR AM I SO COOKED AM I STARTING REVISION TOO LATE PLEASE HELP. IM SO STRSSED OUT I DONT THINK IM GONNA BE PREPARED ENOUGH AND IM GONNA FAIL OMG ONG OMG HELP