Can anyone tell me how to treat my Inattentive Attention Deficit Disorder without medication?

Hi All-
I was diagnosed with inattentive ADD a few years ago. I am currently without medical insurance and cannot afford medication and doctors visits, as I am unemployed working on an internship for my degree in occupational therapy. Is anyone familiar with other methods of treatment (dietary or what not), that is known for helping my condition? I need some help. Thank you so much!