I started my muscadine wine two weeks ago Sunday. I used one and half gallons of mashed muscadines, 9 lbs of sugar, three gallons of water, one packet of regular yeast. Yeast started bubbling and frothing. Wanted to add more juice so I put in pint of juice and cup of sugar and one more yeast package and half gallon of water. It's been 12 days and I can still hear fizzing. I tasted the batch I want to add more muscadine juice to make the taste stronger. I have a qt of juice that I want to add. I need to know how to do this and if I can at this point. And should I add more sugar and another pack of yeast. Thank you for your help.