Is this your first denial? They almost always deny everyone the first time. I got denied when I applied, my first appeal was denied, and then I got a lawyer and at the hearing I was accepted. I found out they had denied me because of my IQ. The best advice I can give is to find a lawyer; the one my family found for me didn't charge up front, she was paid a portion of my back-pay.
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From the movie The Hours: "If I were thinking clearly, Leonard, I would tell you that I wrestle alone in the dark, in the deep dark, and that only I can know. Only I can understand my condition. You live with the threat, you tell me you live with the threat of my extinction. Leonard, I live with it too."