I'm surprised that no one has mentioned this yet, but damn son, Join the Navy! You want time to yourself? Hell, we'll give you 6 whole hours in a 5.5x2.5 rack for sleep and masturbation. Can't beat that (well actually that's the whole point!)
Honestly, I spent 8 Years in the Navy (5 Active, 3 Reserve) as a Russian Linguist, and it really helped me sort things out. Like many have already said here, I joined the service not really knowing what to do. I wanted to go to School, but I didn't have the Grades or the money. The Navy sent me to Monterey, California where I Spent a year learning Russian.
If you deceided not to fly, you might look into Intel. In the Airforce and Navy, you can ride in the RC-135/EP-3 (And if you're lucky, get rammed by a Chinese dweeb). I mean, you won't be flying the plane, but you will be riding.
If you do try to get some sort of pilot status, be very carefull. I've met several people who let the recruiters tell them all about flight opportunities only to ask themselve WTF Happened when they ended up washing Airplanes.
Unless you are a complete popsicle you should be able to get through Basic. Hell, you might take a nap on the plane down to San Antonio and wake up 6 weeks later without noticing. (This is only Applicable to the Airforce and Navy, I'm not sure about the Army, and the Jarheads scare the toejam out of me) It's mostly just a head game. Remind yourself that it's over in 6 weeks, and things could be a lot worse and more humiliating if you were a POW or a convict or hell, a greeter at Wall Mart.
Anyhow, the Navy was a good time, Partied WAY too much, but have great stories to tell. It gave me the time I needed to grow up, and when I got out, I was ready to go back to school and start over. That was 5 years ago, and I've since graduated from the University of California, Riverside, and I'm getting ready to apply to Law school in the Fall.
-Sikboy