Getting Nervous but excited to start my new life!

I am starting to get nervous! My surgery is on June 4th and the time is ticking away. I have started the pre-op diet and all I can say is I am hungry and grumpy. I have even resorted to chewing up small bits of food and spitting it out.(I know this is sad) I am hoping this will get easier. I am 32 years old and have decided to make this change for me. I was staring at my 3 year old last October, putting her to sleep, when I realized, I want to be around to see her get married and have children and be able to be in her life. At that moment I started to cry over what I had done to my body. My 3 year old looked up at me and said," don't cry mommy, it will be okay." She is a old soul. I made a vow right then that I would do everything to be around for both my children, my husband, and myself. I wasn't always obese. I was heavier but really toned for most of my childhood and early adulthood( I danced 40-50 hours a week). When I hit 22 I was faced with a life crisis when my ex-boyfriend was in a horrible accident. I chose to stay by his side and for his whole hospital stay(1 year) I stuck by him. This meant no exercise, and constant fast food and cafeteria food. I blossomed from 180 pounds to 290 in a year. I was disgusted with myself. Two years later, we had grown apart and I finally decided I was going to lose the weight. I went to my doctor and he gave me some nice pills and they worked. I lost 90 pounds. I was so happy!!! Then I got off the pills and gained it all back. I am now looking for a permanent solution. I was looking into the Lap Band but after going to a seminar quickly changed my mind. I have several friends who have had this done and they are so happy. I can't wait to feel healthy again. I hate feeling exhausted and disgusting. If anyone has any ideas how to make it through this pre-op diet please feel free to comment. Thank you!!!