If you want longer acting THC, edibles last so much longer and don't have any of the carcinogens from smoke. Inhaling any kind of smoke is unhealthy because burning plant matter creates the majority of carcinogens in cigarette and weed smoke. Nicotine is more addictive than THC, which tends to increase overall exposure to smoke. but THC has some addictive potential and inhaling weed smoke is about just as unhealthy.
Also therapy can help with many kinds of addictions.