you responsibility and independence. and, no, not every thing in the military is physically demanding.
the key is to draw up a plan and stick to it. find something you like that will help you in the future. it is better to plan accordingly and put off college than waste your college time or fall into massive debt.
if you are not a book person who likes to study, then look at technical schools or the military option.
college is not a thought to abandon, but might be worth putting on hold for a number of years. looking back on my time in the military, then going to college in my mid-20s, i'm 