Well, if you're under 18, and you're living under her roof, I'd advise following what she says, at least for the meantime. Take a break for a month or so, then maybe you can start smoking again, but be stealth about it. Do it away from home, and don't do anything to make her suspicious. Once your 18, go to college or get a job and move out, and then you can smoke to your heart's content.