I totally understand what you are going through. I went through the 6 months pre op diet also and I struggle with losing weight as well. My first 2 months I did not lose or gain then the third month I lost 10 pounds and the fourth month I gained 10 pounds. Finally the fifth and sixth month I didn't lose anything, part of it was totally stress so much stress with my job, with trying to lose weight, with making time to workout and with disappointing my nutritionist. I stressed myself to the max and couldn't seem to stick to the plan. My last month I was so depressed because I felt like I failed and the insurance company wouldn't approve me. So I talk to my nutritionist and told her how I felt. That day she truly encouraged me, she said that she knew I was trying and that's the reason I need the surgery because it's very hard for you to do it on your own. She also said that it's very rare that she seen an insurance company deny a claim because of weight gain. Just to give you a little background, 2 years ago I was extremely successful with weight loss eating right and exercising 3 to 4 times a week ( which I loss 55 pounds). However, I struggled with depression, that lead me to eat eat and eat some more.(gained all that weight back plus more) Through counseling now I feel like I have a hold on that emotional eating and constantly putting myself down. So don't be down on yourself for your success will come and your insurance will approve you. No worries!