5. Cheap beer in the mess.
Might be a long time since you were in Trev, but beer in the mess ain't cheaper anymore...
In the military you also have the chance to see your family for 8 weeks in two years.
So you make your choice and live by it.
From what you have stated here FL170, I agree with DirectAnywhere, you will do all right. Don't forget, it is the journey not the destination.
And if I can give you one piece of advice you can either take or leave, don't be in a hurry to get to the end. In my experience things happen, some good, some bad, but everything has a way of working out in the end.
Cheers
CB