Some of us think that ADD is not a learning disability but a learning difference. There are lots of very successful people with that "extra feature"... Find ways to successfully live with ADD, multisensorial learning is an option, have you hear of it? NLP is another resource that can surprise you a little.
ALL things that happen to us for the most part can either help us become a better person, or can make us throw the towel. YOU CAN DEAL with this, God wouldn't have given it to you unless you could.
Hung in there, check out multisensorial learning techniques and go for it buddy!

gab