A couple of my friends are in the Army, one of the main things they talk about is being bored.
For the first year or so it was great, loads of training and stuff being done but once you're more settled and over the basic stuff they said everything seemed to slow down.
When you're not on exercise or at war a lot of the stuff you do is pretty repetative and tedious.
I think you have to have a certain mindset to be in the army. The regimented order of everything would drive me nuts but a lot of people find it helps them as being told what to do is a lot easier than working it out for yourself.
And remember you may be called on to fight, it may sound glamorous and heroic but the reality is a lot different.
One of my friends was on patrol in Iraq when they were ambushed. The guy sitting next to my mate took a round to the head and died instantly

. They managed to get away and back to base for debriefing.
Three days later an IED killed a guy in the wagon behind my friends.
When he came back to the UK you could see the difference in him straight away. I never understood what they meant by "The 1000 yard stare" but I saw it instantly in him. It's aged him well beyond his years and even now he won't talk about what happened fully.
I'm not saying this to scare you, more to highlight the fact that it's not all fun and games.