With a few simple personal documents, an application and two paphotos you can apply for a new (or renew and expired passport) at many different locations, including many local post offices.
Check out the US State Department Passport Page for more information https://travel.state.gov/content/travel/en/passports.html
Despite being one of the safest forms of transportation, fear of flying is something I hear about frequently from new travelers who are reluctant to start their travel life. If you're a fearful fyler, there are things you can do to help calm your nerves with a little preparation and tips to practice before and during your flights. Don't let fear stand in the way of your travel dreams.
Safety should always be a top priority when planning to travel and there are great resources available to help you stay safe. Familiarize yourself with the US State Departments web resources including travel advisories and recommendations to avoid being a victim of crime during your trips.
Personally I'm a Carry-on Queen when it comes to packing. I want to eliminate the possibility of the airlines losing my belongings and avoid the inconvenience of standing around in baggage claim once I land. Here are a couple of my favorite tutorials on packing that help me make the most of my carry-on. https://m.youtube.com/watch?v=ZD_OixC702w