You're still young. The younger you are, the easier it is to quit. It takes years to develop a real cigarette habit. So even if you think you're hooked, chances are you're not. If you quit now, you will never be sorry. Your body will repair itself. Food will taste better. Everything will smell better (including your hair and your clothes). And don't let anyone tell you stories about gaining weight. Haven't you ever seen a fat smoker? If you have the willpower to quit smoking, you have the willpower not overeat. It is as simple as that. You know what you've got to look forward to. You can grow into a truly free woman, or you can ruin yourself for life.
To smoke or not to smoke---that is the question. The only one who can make the choice is you.