Pam, I had a problem with a cranberry I started, and I too, was sweating bad. Read this thread and try it. We may be able to get you a "jump start"
it.
http://www.winemakingtalk.com/forum/showthread.php?t=4811
Take about 1 cup of sugar waterm or about 1 cup of your wine must and heat it to around 105 degrees F or so.
Use a champagne yeast or something like Preniere Cuvee, The reason for this is they are more tolerant to high alcohol, some refer to these as "kiler yeasts". Others may recommend a different type of yesats, but what I mentioned, should work.
So.., take your sugar water, or your wine must and bring it to the correct temperature. Sprinkle your yeast on it and wait about a half hour or so. You will be able to see it "activating". It goes without saying to use a clean container from the start.
When you can see it "activating", add about a half of a cup of your wine must, and let it go for an hour or so, the yeast will continue to "grow", add another half a cup or so, and the yeast will continue to grow, then do this again, you will soon see a colony of yeast foaming and singing, (not sure about the singing!LOL), do IT AGAIN!
Now you have a strong yeast starter and add this to your stuck fermentation. You really don't have to stir it in, but, stir your new yeast starter, and pour it in.
This should get it going.
Read through the thread I mentioned. same story, different yesat. Don't EVER give up. But do this right away. Please let us know how this works. i WAS just about to give up on a stuck fermentation and tried this recommendation.
It works. if you have more than one stuck fermentation it most likely is the temperature. Keep your starter in a warm place and keep adding your must till it is going good. Stir gently and you will have enough to share amongst all of them. Before you add your starter to one or most, make sure the tekmperature of the must is around 75 or so. Add your starter and give it a chance. I heard staring at you wine waiting for action can make you crossed eyed.
Hope this works for you please let us know!
Troy