I am in the same boat. My sugery is 10/22/10 and I started at 56 and need to lose 30-40 pounds. I am doing shakes and low carb. I have lost 22 pounds in the past 4 weeks and started exercising. It has be hard and so not fun. what has helped me is keeping a blog about the process to keep me acountable and focused. I know you are post op now so how did it go?