I never had that problem. I would suggest quitting until you leave for college, move out, and smoke as much as you like then. Luckily for me, my mom never found out I smoked, she may know now, but I'm 23 and nearly out of college. Granted if I didn't get high so much I probably could have finished school in 4 years, but I blame having to work along with being a full-time student as much as I blame my many vices.

My mom did the same shit yours does, hell mine still does. I would suggest telling her this. Look, I understand your worried about me, but I need to make my own decisions. Find some literature on the subject and ask her to read it. If she still opposes agree to quit smoking while you live under her roof than move out.

Your old enough now and you only have a month or so of school left. At least I'm assuming since your 18 and had a skip day your a senior.