I don't have an answer, but i'm 24 and I also have trouble remembering stuff and concentrating. Sometimes it all comes naturally and other times I start to think my mind is falling apart. So i'm very interested in what I might do or take to set things in operation.

Would you say you are add, or has a therapist suggested you might have that problem? I had a therapist who kept pushing ritalin on me, saying it would not only improve my concentration but also my retention. That surprised me at the time. But I never completely bought the add idea, and the ritalin I tried didn't seem to be the solution.