You may be able to use your GI Bill, just depending on how long you've been in the service. Also, make sue you check the accreditation of the colleges you plan on obtaining your degree. Make sure its regionally accredited.
I was active army and now army guard so between both services I'll be obatining my BS (I mean 4 year
) degree for free. Plus I recevied some non-military grants and scholarships when I first starting attending college.