Gas Money For A Drive Home And A New Battery

I'm a soldier in the United States Army and I'm trying to drive 18 hours back home for Christmas to surprise my family. I got into a car accident 3 weeks ago and after the repairs, my car battery won't work right and my payments have literally drained my wallet to where I can't buy myself food until next year. I just need a little help or else the days I've been given to go home are wasted.