Might not be the right one for you. For me most stimulants don't make things feel "faster" until the dose gets much higher. Also, I usually need a kickstart of caffeine (not too much though or I can get slightly jittery, usually one large, strong cup of coffee or two or so cups of strong black tea) in addition to my 25mg extended release Adderall to clear the initial fog. I then take another 5-10mg of immediate release Adderall in the late afternoon if I need to function in the evening/night.

For me the Adderall at those doses never really makes me feel "fast" or jittery. I have had some of that when I accidentally took 2 of the 25s, but even then it was minimal. It does keep me from sleeping, though, if I take too much, too late, but I almost always have trouble sleeping anyway unless I'm totally exhausted. Also, if I only use caffeine and no Adderall it takes a lot of coffee to get me hyper.

But I have a friend with ADHD who needs caffeine in order to sleep in addition to Adderall during the day and another who can't tolerate Adderall at all and uses a different stimulant (but I can't remeber what). Everyone is different. Try some different meds or combos, with your doctor's supervision of course. Just don't overdo it. Listen to your body and dont base your needs solely on anyone else's. And it's a good idea to regularly check blood pressure since even if a stimulant isn't making your brain hyperactive, it can make other parts react poorly. Home Blood pressure machines are usually cheap and sometimes covered by health plans or allowable under healthcare accounts like FSAs and HSAs and, IMHO, a cheap preventative measure to avoid potential issues. Adderall doesn't affect my blood pressure much, but it does for some and even with that history, I still check regularly.