Alcohol is full of calories and will definitely effect your weight loss. I was visiting Saint Louis a month ago and was drinking Orange Juice and Gin when I was out at the Casino or at the Ball Games. I did not loose any weight for over two weeks and ended up putting on a few pounds.
You need to get onto a good protein source. This will assist in your weight loss and will allow your body to start loosing the fat instead of your muscle. Without the protein, you will continue to loose muscle mass. Some exercise and Protein will get you back on track.
I have found a good protein supplement,
UNJURY Medical Quality Protein Supplement: High Protein Supplement Uses Whey Protein Isolate. Great tasting whey protein supplements!. This is the only protein that easily mixes into water or milk without having to use a blender. It is low in calories, low in sugar and carbs.