Most struggle to quit smoking using will power alone. The most effective way is to consult your local stop smoking service, your doctors surgery/local health centre will have more info on this.
There are myths that using an e-cig or vaporiser is just as bad a cigarette. This is not true. Public Health England have stated that they are 95% safer for your body than cigarettes. Nicotine is not the most dangerous bit of a cigarette, see the diagram above.