liquid diet not working!

I started the liquid diet last Wednesday. I have had ONE meal that wasnt blended in 7 days. I've followed exactly what's on my list of things I can eat. I'm sticking to serving size

 I'm eating 5 or 6 small meals a day. Exercising some...but not body building. I went on a trip where I couldn't weigh myself since sat. I was so excited to get home and weigh. I have post off appointment Thurs and I had 12 more lbs I have to loose. So I weighed and I've gained about 5 lbs!! 

I am totally beside myself. Why am I not loosing?? Even before that I was eating very good and in 6 weeks only lost 8 lbs. 

On liquid diet I'm eating between 800 and 1200 cal per day. 

I am just at a loss. If I don't loose 12 lbs...I won't be having surgery June 11th!

How are you?  I hope you did  http://bit.ly/1ocaNoB you can find answers here ....

I use only 100 calorie protein shakes. Low carb and low fat. And water. I have 3-4 a day and sugar free Popsicle if I want something different. I use fruits to flavor my water. Look up water detox recipes.