It is important to apply for your passport several months before your trip. First-time applicants, minors, and applicants who may not renew by mail should submit their passport application at the Post Office. I your'e in America, then the U.S. State Department website will explain what you'll need to bring with you.
Visit the U.S. Department of State website to learn how to apply for a passport and what documents you need. Post Offices have set hours for passport services and you mau require an appointment. Use the Find USPS Locations tool to find the nearest post office offering passport services. These are the basic steps where its easy follow as you go on.