Have you worked in the past? I know you have to have a work history of X amount of hours/years to even be considered for SSDI disability, and you need back up from your doctors agreeing that you indeed are not able to hold down employment . If you dont have a long enough work history you would be filing for SDI , there is a difference between the two.

Go to your Local Social security office and ask them how to proceed and for what program.

I wish you luck