Comment by tombert

I tried the three big ones: regular Adderall, Adderall extended release, and Vyvance. None of them really helped my focus and all three really screwed with my sleep.

Kind of ironically, it turned out that a lot of my focus issues were due to (at the time) undiagnosed sleep apnea. The caffeine and the adderall sort of became band-aids that covered up the real problems.