Yep, you're getting LOTS of good advice here... pay attention to what Ochmude said (both parts
).
If you join the Navy or Marines, you'd better be (or be prepared to quickly be) comfortable in and around the water. If you join the Army, you'd better be comfortable wearing out your boots. If you join the Air Force... well, never mind...
I've been Army Reserve for 26 years now... that's the longest commitment I've made to ANYTHING in my life except for my parents... if I had it all to do over again, I would... but maybe I would have transferred to the Air Force partway through... Not only is the Air Force relatively more comfortable as a Service, but you can also transfer a LOT of skills learned there into well-paying jobs in civilian life when you finish your service.
So, sitting miserably in the rain, mud, cold, or heat, or in the middle of the ocean, miles & miles from home, you will, at some point, wish that you had joined the Air Force... even if only briefly...
You'll never make better friends; you'll never learn more; and you'll never have as much fun as you'll get from a tour or a career in the service of our nation.
... You'll
ALSO never work harder; you'll never work at as many stupid jobs (you want me to rearrange the ROCKS?); you'll never work longer days; you'll never have as much to whine & moan about; you'll never stand in longer lines; and you'll (probably) never have a supervisor who you hate as much as you'll experience in the services. If you're very fortunate, you'll never have to cry at the loss of a comrade or a good friend... or stand in formation for the playing of Taps.
I wouldn't change it for the world... and I sent my son to the Air Force!