First of all, props to you for your service overseas. Have you been treated by a doc for your injuries?
Second, your children need you. Things are never as bad as it seems in the moment. Be strong for them. This too shall pass. There are a lot of people in tough times right now w/the economy. Its not you.
You can think, you can type. You know how to pull it together and work toward a goal since you are military. There are jobs you can do. Write, edit, go back to school. Have you considered air traffic control? They view military experience and maturity an asset:
[url=http://finance.yahoo.com/career-work/article/108014/10-jobs-with-high-pay-and-minimal-schooling-required.html?mod=career-salary_negotiation]10-jobs-with-high-pay-and-minimal-schooling-required.html: Personal Finance News from Yahoo! Finance[/url]
Second thoughts can generally be amended with judicious action; injudicious actions can seldom be recovered with second thoughts.
--Cyteen by C.J.Cherryh