How do i leave my family, to join the us airforce?

Okay, So I will be turning 21 on the 15th of October 2009. Ever since I was in high school I wanted to join the airforce. I got as close as taking the Asvab test. Im am really close to my family. I am the youngest of 5. I feel like I've alway been...

catered to when I needed something. Over the past 5 years I've grown super close to my 7 yr old nephew. I am like his mother in many ways. When I told him Auntie might be leaving and explained what was going to happen, he cried and kept asking me to not go. It broke my heart. Not to mention How could I leave my mother, Sister, and brother?? It has always been just us, but they all have families now. So is this my time to go and start my life?? I think yes! But in the back of my mind theres my nephew I cant break his heart. Im the closest person to him. Than again I feel like my life is going down the drain, because im not doing anything productive with my life. What do I do?? What would you do?? Keep in mind my nephew, he is the one I worry about the most! He's my heart, I'll miss him like crazy!

well if the air force is what you want to do.then go for it.your family will understand.just get everyone together and tell them your descison.it is your life to do with what you want.

yeah if its what you want and if its your dream then you got to go out and achive it. Your family will understand trust me.My boyfriend went to the U.S Army and his parents/ family approved his decison.Just go out and achive your dream!
No one should hold you back.

Thanks for the advise..My big concern is my nephew. He is so close to me, as said before im like his mother in many ways. How do I deal with that?? How do I make him understand what I am doing, an why I am doing it?? Will he understand later in life?? Or will I always be consider the one that left him? I don't ever want him to feel like I just up and left him..I don't know why is this so confusing =(

I honestly thnk that your nefew will understand.
I have a nefew my self and we are very close and his mother took him away from us for at less 4 years .
I felt like my life was upside down because I always thought that he would for get me or never ever forgive me.But I explained to him the situation and he ran to me with tears and telling me he loved me.

so just talk to him take him out and have fun.
and tell him he will always be in your heart!