Me, too. It's one of the great regrets of my life.
Regrets smegrets; it is not all that - and depending on the time of service you could very well have come out in a body bag, pieces no one ever finds, missing various bits and part of your body, psychologically injured/damaged and never recover, what you could have been gone forever from the trauma.
In any case, the you that went in would not be the you that comes back good or bad.
By far, the military training, discipline, motivation and dedication, have been much more helpful to me in my life than my business degree has been.
If I had it to do over again and could only do one or the other, I'd join the armed forces for at least a tour or two.
I second that notion. The only reason I avoided military service is that I had such a shit relationship with my father and his 'my way or the highway' attitude that I felt that I might end up in Leavenworth.