You need a convincing diagnosis of a disabling condition from a doctor to have any hope of qualifying for SSDI; once you have that in hand, there are specialist attorneys who will assist you in your disability application in exchange for a finite portion of your future benefits. These attorneys will be familiar with the intricacies and requirements of the application process and should be able to improve your chances of qualification. By the time I finally applied for disability, I had already racked up diagnoses from several reputable doctors and ten years' history of conspicuous dysfunction, so I didn't need an attorney. Regarding disability, the money may not amount to much, but Medicare is a critical benefit. Good luck and God speed.