Sometimes we mess up cravings... thirst, hunger, caffeine, nicotine, other stuff in tobacco. Vaping isn't 100% the same. Some people crave tobacco and use snus (Swedish snus is theorized/?studied? to be safer..note I didn't say safe). I'm not an expert here. Just mentioning that some seem to "need" the tobacco.
The references you see on this site for WTA is for Whole Tobacco Alkaloids. Some e-juices have these, some don't. I can't recommend them one way or another, since my personal goal is to be as tobacco free as I can get... including skipping WTAs. However, some say they help.
I'm guessing that you can make it with your current e-juice. Make sure you stay hydrated, do the food thing you were discussing, clean the atty if you think it isn't 100%, and stick with it!!!!!!!! You can do it! Keep researching here on ECF and elsewhere. Remember that your blood carbon monoxide levels are virtually non-existent now, your lungs are clearing up, you are detoxing, and getting healthier. Hang in there!