What time should i go to bed if i wake up at 6 30?

Assuming the 8-hours-of-sleep-everyday mantra, I'd say 10:30PM* :)

*which is unlikely for a generic high school student ;)

Your dog can sniff at or even eat a bit of catnip. the herb is edible and not harmful. just don't expect them to roll around like a cat would! your dog may scrutinize catnip by licking and smelling at it, or be totally indifferent to this stimulant.