I don't smoke, and have never been attracted to cigarettes. You should REaLLY STOP , my uncle is at hospital because of that, he got 'Pulmonary Fibrosis' and Doctors said he doesn't have many chances to survive ;(((( am currently trying to find an organ donor: my uncle needs Lung Transplant 
I don't blame you for trying to ease your SP, but there are safer stuff for that than smoking: I personnally needed Bromazepam (in very small amounts), and that greatly helped me when i was 20, and after that I undertook therapy which worked for me (am now 26) and I can today live a normal life w/o any drugs: TRUST ME physical exercise (group exercises) and healthy lifestyle are the best things to ease you anxiety
I don't blame you for trying to ease your SP, but there are safer stuff for that than smoking: I personnally needed Bromazepam (in very small amounts), and that greatly helped me when i was 20, and after that I undertook therapy which worked for me (am now 26) and I can today live a normal life w/o any drugs: TRUST ME physical exercise (group exercises) and healthy lifestyle are the best things to ease you anxiety