Focus on Your Weaknesses - In the last few days, focus solely on your weaknesses, whether it be a whole test (section) of the ACT or just a few topics.
One Final Practice Test - When you've finished studying, take one last time practice test about two days before test day.
Follow Your Routine - To make sure that you're prepared both mentally and physically, keep your routine the night before and the morning of the ACT.
Visualize Success - Even before you start to feel anxiety, imagine that the test is over. You’re walking out of the testing room, and feeling good about how you performed.
Show Up Prepared - The last thing you want to worry about as you shake yourself awake on test day is what you need to bring: an admissions ticket, photo identification, a permitted calculator, and an outfit with layers.
Keep your focus during the test - A surefire way to not get the score you want is to constantly pay attention to the test-takers around you.
Eat on your break even if you aren't hungry - Your brain needs fuel just like the rest of your body, even if your nervous stomach doesn't think so.
Reward Yourself - You worked hard for this, and no matter how you think the test went, afterward treat yourself to something you enjoy.