To know if you are eligible you would send for a VA certificate of eligibility. Most lenders will do this for you. You will need to present your DD214 (discharge paper from the VA) and sign a form requesting this.
The VA now has an Automatic Certificate of Eligibility which takes about 48 hours to get. I do this for my clients but you also do it on your own.

Contact me right away if you have any questions at Athena@AthenaPaquette.com