Retirement yet?

I have had the goal of retiring as a LTC in the Army but the more and more time I spend in the Army the less and less it is important. I look around at different people who sacrifice their family to succeed in the Army and I keep thinking for what? I feel it is ridiculous to choose to spend hours on the weekend to work on a different products for the Army. I wish I would have foreseen how difficult this 5 months would be separated away from Jennifer and the kids. I thought 5 months would go by fast and it would be better for the kids but now looking back I'm not so sure. This 5 months would have been so much better if they were here. It maybe time to reevaluate my retirement goals.