Great decision to quit while you are still young and your body can rehabilitate itself from the damage smoking does. Dig in and remain steadfast in your resolve to quit and stay quit. Arm yourself with as much knowledge about nicotine addiction as you can - plenty of stuff here to help you in that regard. Read old posts and the pinned stuff at the top of the Quit Smoking discussion page. There's even a games page here to help keep you distracted when those cravings come calling. Stay close to this site because there's lots of other quitters just like you that can help you along.