Thankfully, when I was in the Navy, I was single for my sea-going days. I never wanted my wife (or now, kids) to ever have to deal my absence. While I was in though, I did get to see a lot of guys deal with the same thing you are dealing with and the only advice I have is to spend as much time as you can with your son. Nice thing is, he is still young, but these are also the years you don't want to miss. Whatever time you can spend with him, I would do it. Being together with your wife and son is definitely the most important thing.

I second the "Thank you for serving your country!" and add, "Anchor's away!".

Regards,

Jeff