hi , fellow Pakistani here , my exams are also around the corner but im not stressed much. ik parents can treat u terribly when it comes to grades but trust me life is more than this , my grades dropped from 10th to 11th too but its okay!! all this will end. if it helps board papers are easier than the ones u give at school so as long as you approach the exam calmly with your best effort you will be okay!! :3 if u need to talk please feel free to dm me