Well, then you’re ignorant. I had ADD undiagnosed for 30-something years. Stimulant drugs don’t make me hyper; they actually help me settle down, relax, get my thoughts together, and get busy. When they combine stimulants with anti-depressants, that can be a problem since (1) anti-depressants can make NORMAL people respond like ADD people to stimulants, (2) depression also causes inattentiveness, (3) being depressed and coming down from a high is a really, really bad idea.
Why don’t you try developing faith? True belief in Jesus is the best cure for anxiety there has ever been.