If you dream of joining the US military, you must first take and pass the military version entrance exam or ASVAB. You can get an overview of how you can prepare yourself for professional performance.
You can't just go to your office, sit down to take an exam, and wait until you graduate. Although some would be successful without training, most soldiers needed some prior planning and research to be adequately prepared for the test at https://www.andysasvabclass.com/.
There are many different approaches you can take when planning. This ultimately depends on your current skills and knowledge. Firstly, take the ASVAB basic practice exam. Take this one without studying just to see where you are and what kind of improvement is needed.
After completing your exam, review your answer and your overall score. You have to look for something more than your raw produce. You want to see exactly how you do it in each section. For example, some students master vocabulary but need help with maths, while others are good at math but have problems with science.
The next factor to consider is how much time you have for the exam. If you only test for a week, you need to get serious and find out what problem you are having. If instead, you have weeks or months before testing, you can create a long-term training plan with a few hours a day or a week.