Can I still join the Army even if I take medication?

I'm currently a Junior in High School who wishes to join the Army Reserve. The only problem is that I take Adderall XR (meds) for my ADHD. While I do know that I must be off my meds for a year before I join, is there some way where I can go to BCT this summer, and then finish off my Senior year without meds (which would actually be 12 months until the next summer) and then attend AIT?