Always worry about the authorities, good luck with keeping the family in the dark, smell may become an issue. The extreme example I know of, a bunker grow, the guy was very careful. Kids being kids had found out suspected something. During moment of excitement, or just trying to impress someone, one let it slip. Game over.

My strategy has been, honesty with the family. But they need to be aware of the extreme risk, they are part of the eguation. But tell them what could happen if their not on board.

Friends get tough, when you bring out the stash. Never bring out much, have your story ready and stay with it. This part of growing is tough, when you do something well you want to share or brag. It's kinda a lonely game.