Most people feel tense at this point. Whatever your state of preparation, your task now is to do your best.
Take your time to read through all the questions and instructions carefully. Do it at least twice, to make sure that you get a firm grasp of the questions.
Pick out the questions that relate well to your revision. Don't rush anything. Taking adequate time at this point will pay off handsomely. If you can't decide which questions to answer, pick out those you can answer and come back to the others later.
Plan your answers. This is really important! Five minutes spent on a plan and rough notes will help your thoughts to flow.
Eat something, even if you feel sick. Bread, crackers or cereals are good stomach settlers.
The PICAT is a practice test for the ASVAB.
So if you did OK, you should be fine.
Is this what you're taking?
The Pre-screening, internet-delivered Computer Adaptive Test (PiCAT) is an unproctored version of the full ASVAB that currently provides recruiters with the ability to effectively determine if an applicant is qualified before sending them to a military entrance processing station or military entrance test site.