8 percent is still an awfully low success rate. personally i tried to quit cigarettes several times with the patch, nicotine gum, and vaping with plain nicotine, but always went back to smoking after about a week.
now it's been almost 3 years since i quit for good, and what made the difference was vaping liquid with "whole tobacco alkaloids" (WTA), meaning they add not only nicotine but also 3 other psychoactive compounds from the tobacco. no more cigarette cravings, hundreds of times less toxic than smoking. end of public service announcement.