SA is a disease, a wrong "wiring" in your mind, many people find it difficult to understand psychological disorders, "I don't understand how he thinks like that and i don't?" is the common comment.
to help with SA you need to take medications, smoking on the other hand is an established cause of anxiety, and given that SA is a kind of anxiety disorder, i don't see how it can benefit you.
if you don't want medication, there's another way. we call it "behavioral therapy", you can see a doctor, who tries to help you get insight into your disease, and how to overcome it.
final solution which i'm trying to do, is self behavioral therapy. and i'm reading a couple of books nowadays, i'd tell u when i finish them my opinion.