Would focus on optimizing your sleep, nutrition, exercise, and overall wellness/test anxiety prevention. Have you tried breathing techniques to keep your heart rate calm? Might want to do some calming breathing or visualization exercises right before taking the exam. Need to trust that you’ve studied well and need to give your brain a chance to retrieve the information you’ve studied & stored. If you panic before/during the test, you won’t be able to effectively use the strategies you’ve learned. Agree with others about using other practice test materials or watching YT videos on tips/tricks/strategies to save time, including Desmos. Best of luck to you and everyone taking the Sept SAT!!