> I'm one of those people who rather meditates and
> works out regularly than to take any drugs - I
> don't like to mess with my brain
I wasn't diagnosed until my 30s. Like you, I didn't like the thought of messing with my brain but eventually got fed up.Meditation, exercise, diet, getting lots of sleep... these help me more than Adderall. BUT, the Adderall does help too. So I think you are a very good candidate. It sounds like you are thinking of the big picture and not just relying on Ritalin to be a "magic pill."
Probably the best thing about trying Ritalin/Adderall is that you can always stop them if they're not helping you. Just reduce your dose slowly over the course of 3-4 days.
Good luck!!