Before you sit down for anything "Sharky" needs to have been exercised (physically and mentally), fed and crated.
Just went through this with WD but I remember how shocking it is to find yourself with a set of teeth on 4 feet. Work through it; it will pass. By the time he is 6 months old, it will be a funny memory and your arms will look whole again.
It is good that he looks cute (is my guess).
Deja, GSD, sable WL, female, born 11 / 2013
Cam, Rough Collie, sable, male, born 8/2015