In the late 1980s and early '90s I was a frequent flyer, over a hundred thousand commercial miles a year within the US. I flew additional miles in Army fixed-wing utility aircraft, the military equivalent of general aviation. I was basically evaluating Army units across the country, especially intensive during the first Gulf War.
Army policy allowed me to collect frequent flyer miles, though I was not allowed to use them for personal things, like vacations, only for "enhancements" to my official travel. So I was permitted to get first-class upgrades (the govt only buys the military coach/economy fare), and buy memberships in private airline terminal lounges with my frequent flyer points.
If you are careful about acquiring flyer points you can alleviate some of the more unpleasant aspects of air travel. Most points programs give you additional mileage credits if you rent cars from certain companies, stay in certain hotels, and use other participating services. I made sure to do all of the above.
I was racking up so many credit miles that I flew first-class most of the time, and those "VIP" lounges are a god-send when you're waiting between flights, or encountering delays. Some lounges have complimentary drinks & snacks, Internet connections, ticket agents right on-site, and infinitely more comfortable accommodations than languishing in a terminal public waiting area.
If you do become a frequent air traveler, you'll find there's an art to it. Living out of a suitcase like I did is still a grind, but there are ways to make it more civilized & humane. Hope your post-school plans work out for you.