I need help, I really want to make my own juice, but I don't know where to go for vegetable glyserine, I was told Walmart, and then I was told don't use that because it's not food grade, and then was told go to a whole foods store, plus I have to get the nicotine, and flavorings, and empty bottles, plus learn how to make it, a little overwhelmed here, but I will learn it, any help would be appreciated.