Don't bother starting for relaxation purposes. The only reason you feel relaxed from smoking is because the deep breathing. Nicotine is a stimulant, so relaxing with cigarettes is kind of impossible.
As for getting high, you'll get five minute "high" if you smoke once every 3-4 days. If you're unlucky, once cigarette will make you very sick for a few hours.
Nothing wrong with cigarettes if they're used as a commodity.