As much as I didn’t want to apply, I was successful the first time I applied. I was surprised as to how much I earned working versus what SSDI pays (about 1/4). I assume it is based on what you paid into the system and how much you earned. One of the other benefits I received is Medicare and being under 62.5 years old. Try and get an online account, it helps. Try and use any medical terms that your doctor has used. Not that I had to, nor do I know anything about it, but you can always try to get legal help in applying. Good luck! Jim