Lisa,
You DO NOT SUCK! If dieting was easy, none of us would have to have this surgery in the first place! I know that whenever I even thought about going on a diet I ended up gaining weight because I ate more of the bad stuff, thinking I would be deprived. So do not beat yourself up...just plan to embrace your new life, free of hunger with the sleeve. This is a tool that will allow you to more easily make the right choices. This week of pre-op is time to get real though. You need to do your liquid diet faithfully without cheating. Find a protein shake you really love. If you are a chocolate drinker, my whole family likes chocolate flavored Nitro Peak that you can pick up at Vitamin World. For me, it helped to remind myself that this was just ONE WEEK and I was doing it for a healthy, safe surgery. You might experience some dizziness, headache and loss of energy for the first few days as you come off the carbs and sugar. Don't panic, just drink lots of water and stay the course. Once that stuff is out of your system, you will no longer crave it, which is such a blessing! That does not mean you will not want it though, so just keep reminding yourself about the reason you are doing this, to prepare for your surgery. YOU CAN DO IT! I will keep you in my prayers for great will power during the liquid phase and a safe, easy surgery and quick recovery!!