Failing.....

I suffer from ADD, throughout most of my life this has not bothered me, I have just accepted it and went on being the way I am....Now that I am a husband and father I can't stop thinking that I am failing as a provider for my family....because of this I am not able to sit behind a desk or on a computer all day, therefore extremely limiting my ability to get a higher paying job, so that I could provide better for my family...I recently  just started thinking that maybe I could take some meds to defer my ADD, but then I realized that you need a doctor's order for those meds and I have no insurance and can;t afford to see a doctor....I don;t know what to do but I am certainly tired of feeling like I am failing my family.