I'm having a huge problem with myself!!!!

I joined the Military back in January after a life of backpacking and being on the road all of the time. Now I'm stuck in Great Falls, Montana and I'm having trouble with trying to decide what is more important to me.

On one hand I have Military life that pays really well and I have a lot of things for myself that I have never had before. I was planing to put in my 20 years and Retire at the age of 42 and then travel for the rest of my life while getting payed by the Military until the day I would pass away. I would also have my own Trust savings witch would equal out to over 1.5 Million. MY POINT IS THAT IN 20 YEARS I WOULD BE SET FOR LIFE AND BEYOND AS FAR AS MONEY GOES.

On the other hand I have this PASSION, this ADDICTION itching and scratching at me inside. I want to GO, BE FREE AGAIN. I just want to get my old Northface pack stuff it with a few clothes and nicknack's and hope on the next freight train out of this little town I'm in. I thought I would be seeing so much more then I am right now, but all I do is get up every morning at 4am and get to work by 5. I don't know if I can wait 20 YEARS! ...and if I do manage to pull it off it's going to take more strength and determination then I have ever given anything in my life!

I'm just looking to see what other people think I should do or consider!

I know 20 years is 20 years that I will never get back!
I know I will see and do a lot of other nice things in those 20 years also.
I'm just looking for some kind of support from friendly people.