Kiffy,
Have you tried Adderall long-acting? I tried Ritalin and I found it to be very "harsh" and I felt very anxious. I was so busy trying to self-will myself into a state of calmness, that I cannot tell you whether or not Ritalin helped with focus and attention.
I switched back to Adderall LA (it's now in a generic form which makes it very inexpensive) and the difference is amazing. IMO, Adderall is very smooth - it does not suddenly appear in my system and scream out "You're on a stimulant, how's your anxiety doing??!!" I feel focused, am finding out that my ability to complete one task as well as multi-task is improving and without it, I would not be able to get out of bed and stay out of bed due to chronic fatigue secondary to my depression. Hope this helps.

Laurie