Hey,
I started vaping only 26 days ago, but I also haven't had a smoke in 26 days!
When trying to quit in the past, cold turkey I have never made it past 24 hours. I haven't tried anything else (patch, oral meds, gum, etc), but since vaping I seriously feel really good in not wanting a cigarette and that I can keep going without one.
I stared at 6mg and I'm now going back and forth between 6mg and 3mg juice.
I suggest picking a reputable vape store in your area and having them set you up. I think it really depends on how much you smoke and what brand as to the route you take in choice of mgs in juice you start with.
From reading a lot online there is no scientific research to show that nicotine causes cancer or other health concerns that they know of.
In a cigarette its the combustion of tabacco that gives the components that can lead to major health issues. However it's the addictive nicotine that makes you want that smoke.
With vaping you are getting the nicotine, just not all the harmful crap from tabacco
I however am interested to consult with my doctor on it as I know not everything you read on the internet is true, but hey it's got to be way healthier then smoking a cigarette.