Hey Angie,
Hang in there. I just got through 2 solid weeks (well, 13 days) of Vaper's Tongue. I know how hard it makes quitting and how unsatisfying it is! Huge disappointment. My suggestion for juice in the meantime would be "Arctic Wolf" menthol from Vapor God. Very powerful. I could taste their Hot Cinnamon too, but I didn't really like vaping hot stuff. Those were the only things I could get a sensation from. Everything else tasted like nothing.
I got it after only one week of vaping, I have good oral hygiene and was drinking water. I could taste food, but it was kind of muted (noticed I was putting more sweetener in my coffee).
I tried alllll of the remedies I could find online... pickles, spicy food, biotene, etc. Nothing made a lick of a difference that I can tell. I gave up on all that and just kept drinking lots of water and brushing my tongue since those are good practices regardless.
Suddenly on the last night of it I noticed I began tasting a generalized "sweetness", though I couldn't detect flavor beyond "sweet". The next day .. BAM.. flavor was back full force. I am enjoying myself SO MUCH this week ever since it came back. everything is like OMG THIS TASTES AMAZING!!
I'm no scientist but in the midst of my frustration I read a lot about what taste buds are and how they work. The cells and nerves in our taste buds need to regenerate. Cells regenerate rather quickly but nerves can take up to 2 weeks! They regenerate and die off at different rates. We need all that stuff to be working right at the same time in order to taste things correctly. Why it happens when we vape.. I don't know, but I'd like to!
Hang in there. It does go away and when it does everything tastes so good!
Edit: Also, some people say no sugar. I don't eat sugar. (I eat maybe a total of 20 grams a day via vegetables, but that's it). So, sugar can't be a cause of vaper's tongue. I can't say that cutting back won't help, but sugar definitely doesn't cause it and not eating it doesn't make it go away.