Stepper Motor Everything in Order, Not Moving
Your schematic does not include the enable pin. You'll need to pull that low in order for the drive FETs to be enabled. Not sure if there is an internal pull down. You also need to pull the sleep pin high.

As far as your power supply goes, 5V is not enough potential to shock you so have no fear. Check the coil resistance of your stepper too, I'm wondering if 5V is enough to drive the current your steppers need. Take a few of those, and call me in the morning.