A rifle for a 6 year old? That's not good, especially if he's not had a gun safety class. I think I would have to talk to someone about this because this could lead to a dangerous situation or one whereby your son is out shooting and hit someone, an animal or damage a car or house.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.