I too had this issue when I was a teenager and have tried them all, including a prescription from my dermatologist (I think it was Drysol, but I felt like my armpits were burning). I would definitely recommend CertainDri, which I used to find at CVS. This worked as well as the CertainDri for me, and you could put it on in the AM (Though, they recommend using it at nighttime too). I don't remember getting the "deodorant balls" - it was a roll on, so you can't see it.
I don't have a problem with sweating anymore, and will use the Secret Clinical Strength or the Dove clinical one now.
Hope this helps!