Test anxiety is not a sign that you did not study enough. It is your alarm system reacting to something that feels like it matters — grades, parents, your idea of yourself — and doing what alarm systems do: speeding up your heart, tightening your chest and narrowing your attention to the scariest thing in the room.
The frustrating part is that the same system that keeps you alert can also make it harder to reach the stuff you actually learned. When you are that keyed up, working memory — the part that holds a question and pulls up the answer at the same time — has less room to work in.
So the goal is not to feel calm. Waiting to feel calm before you start is a trap, because the calm usually arrives a few minutes after you begin, not before. The goal is to be functional while anxious.
The night before: stop studying earlier than feels responsible. Cramming past the point of tiredness mostly buys anxiety, not recall. Do one low-effort review — read your notes once, out loud, without quizzing yourself into a panic — then write down what time you are leaving, what you need to bring, and one sentence about what you will do if you blank. Having a plan for blanking is what stops blanking from becoming a spiral.
Then protect sleep like it is part of the test, because it is. Phone across the room, lights down, and if your brain starts rehearsing the exam, let it — try telling yourself 'I'll deal with that at 7am' rather than fighting the thought. Fighting keeps you awake longer than the thought does.
In the room: before you read anything, put both feet flat on the floor and breathe out longer than you breathe in — in for four, out for six, six times. A longer exhale is one of the fastest levers you have on your own nervous system. Then read the whole paper once and answer the easiest question first. You are not being lazy; you are giving your brain a small win so it stops treating the page as a threat.
If you blank mid-test, do not stare at the question. Put your pen down, breathe out slowly twice, move to a different question, and come back. Blanking is almost always temporary — it usually passes once your body stops shouting.
One more thing worth saying plainly: if the anxiety shows up weeks before, or you get physically sick, or you have started avoiding school on test days, that is not a study-habits problem and you should not have to fix it alone. Tell a parent, a counselor or a teacher what is actually happening.