I'm new too, sorta. I tried vaping a year or two ago, but did it wrong and was scared away for a bit. First time I got 18mg juice and a crappy pen-style device. Apparently 18mg was way too high for me as I spent a whole day feeling like I was on the verge of a heart attack. The pen sucked. The tank leaked terribly and gurgled and wouldn't hit 8 times out of ten. I did buy some zero nic juice to dilute the 18 mg with, but between the bad experience and crappy device, I lost interest pretty quickly.
This year I've been having a hard time on cigarettes. Not getting any younger, constant coughing and shortness of breath. Tired of dealing with hateful comments from people, dropped ashes everywhere, financial burden, etc..., so I decided to give vaping another try since I have terrible willpower and have been intensely addicted to smoking for about 25 years, 1-2 packs/day. I'm just not one who can do cold-turkey.
So this time around I purchased a better setup. Aspire Zelos with the Nautilus 2 tank. I prefer mouth to lung style vaping, so I'm using the 1.6/1.8 ohm coils. Bought samples of 3mg juice to start, did ok with that, but needed more nicotine so got some 6mg samples, then moved on to 9mg which seems to be the right level for me for now. I'm taking my time, just trying to vape more at times I tend to smoke excessively, like in the morning, in the car, when I have a beer or am on the phone. So far I've cut my cigarette smoking almost in half. I can go on an errand and leave my cigs at home. Only bring the vape along. Already, I'm able to breathe more deeply. Once I'm off the cigs fully, I'll wean off the nicotine.
So you can do it, but my advice is to ease into it. It kinda just takes care of itself as you go along with the right device and nicotine level. Only get sample packs in the beginning so you can find the right flavors and nicotine level for you without wasting too much money.