It sounds like you need to see a psychiatrist near you to hear more about medications to treat ADD. There are several, the most commonly prescribed being Adderall, Ritalin, Concerta, and Strattera. But there are others too and you would need a thorough evaluation by a psychiatrist to determine which one would be right for you.
Other than medication, it can also be helpful to work with a psychologist or other mental health practitioner to help you find life changes that you can make that could also help manage your ADD symptoms. These often include help with time management, organization, and relationship skills.
I don't know of research on the use of Omega 3 fatty acids to treat ADD but know that they are often used to treat depression and/or anxiety. There is some speculation about certain herbs that can be used to treat memory problems (associated with ADD)- such as Gingko- but there is very little research on this.