Don't know what to do about smoking? :S?

Find a connect. An older friend that can go in and buy them for you. Or if not find out what places don't really I.d if you look older. As for hiding, chew gum. Or mouth wash that's what I do since doesn't really help much for me. I carry around a traveling size mouth wash, comes in handy :). As for smell if you know you're going to be around people try to spray yourself before. And make sure your finger tips don't smell. As far as relieving stress, cigs don't really help me out at all. I actually don't really even like them but ill have one once in a while for the hell of it when friends are. Then again everyone's different