While you are filling out an application for disability benefits, you should avoid these 6 commonly made mistakes. 1. Failing to request a hearing. 2. Stopping medical treatment. 3. Keeping incomplete records. 4. Filing for unemployment benefits. 5. Using and/ or abusing illegal drugs or alcohol. 6. Failing to get legal representation when needed. These mistakes are made consistently, and being aware of them should give you a leg-up when filing for Social Security disability benefits.