Likely it's a combination of chemicals in tobacco that give you a buzz, and vaping will never match that (can't speak for WTA juice, however).
Agree ^^^ ... At 19 years old and not addicted to smoking or vaping, my advice is to NOT do either one of them ... But everyone has advice and opinions (which are usually ignored by other people) and so you more than likely will vape nicotine if your mind is set on it and no matter what anyone here recommends.
With that caring remark from myself out of the way I will simply tell you that nicotine from vaping is not "exactly" like the nicotine from smoking. Yes, nicotine is nicotine but the problem is the method in how the nicotine is delivered into your body. With smoking there are just too many unknown and yet to be discovered variables. They are still finding chemicals and compounds in combustible tobacco smoke that they did not know was there. The current facts are leading many researchers to believe that those other alkaloids and chemicals are responsible for smoking being so addictive, not just the nicotine alone. Not only that, but I am assuming that all those other chemicals are what is responsible for the "buzz" that is experienced from smoking tobacco.
Another thing to take into consideration is that when inhaling cigg smoke your available oxygen goes way down when inhaling smoke as tobacco smoke is not a carrier of oxygen and therefore blocks oxygen from getting into your lungs. On the other hand, when you vape, the vapor can carry oxygen with it into the lungs and so you get much more oxygen into your body when inhaling vapor and so you are not starving your body for oxygen near as much as when smoking tobacco.
Personally, I do get a bit of euphoria , buzz, and relaxation while vaping nicotine, but it is not near as strong as when I smoked tobacco due to what I have just mentioned. Don't make the mistake of thinking that by increasing the nicotine level that you will get a better buzz because what you will get instead is being sick from the high amount of nicotine. So, you will not get as strong of a nicotine buzz from vaping as from smoking no matter what type of a vaping setup you use.