Today i had my paper 3 chem alevel exam, and during the exam i looked up at the board and misread the amount of time i had left, i ended up rushing everything and then when i realised i had more time i prioritised a 7 marker and tried to solve it but couldnt. now im really really panicking, Im so scared i wont even get 50% and i need an A in chemistry for my offer. i feel like i cannot focus and i have my biology paper tomorrow, my heart really hurts, does anyone have any advice on how to revise when dealing with this anxiety?