I smoked for 29 years, started vaping on October 2 2013 started at 18mg of nic and every 2 weeks cut down 2mg. currently I am at 8mg and I never had any trouble, its a matter of just doin it, if I did do so can you. And believe me I had 50 million excuses not to stop smoking sooner.
SLOW DOWN!!! You smoked for 29 years, give your body time to adjust and do it slowly. Im only telling you this from personal experience. I rushed it the first couple of times and ended up falling off the wagon.
Theres no reason to rush...what youre doing now is WAY better for you than smoking...even if it takes 3 years to ween yourself off completely youre still farther along than many smokers who are trying to quit.