What? Candy Crush isn't enough for these kids?
p.s. all jokes aside, you are doing well.
p.s.s. I got into the Palladium Role Playing system for a bit. I also had Heroes Quest, a board game, that structures the GM role and makes it less intimidating. It might help to practice on something like that.
Those sound cool. We played Descent last summer and had a lot of fun. But he really wants to get good at this.