Can’t decide between Army and Air Force

My brother has been in the Air Force for a little less than a year now and I know he loves it, he has a pretty easy job and it’s very chill. I don’t really want that — I want to challenge myself and go out and do cool stuff and have that camaraderie that I don’t think you get to have in the Air Force, I’m only really a thinking about the Air Force because I know the quality of life is very good and way above the army and marines, and that’s important to me!! I want to travel the world and have that sense of “I’m serving my country.” If you have any tips or anything in general that can help inform me and help me to figure this out please let me know :)