Oh, another thing - any good surgeon will have a whole pre-op team... Mine included the bariatric GP, exercise physiologist, dietician and psychiatrist.
And the care doesn't stop there - they are available to me when ever I need. Like I said, I am in a remote location so I have all their mobile numbers and can call if needed. They are there at my disposal, and for you who struggles with emotional eating, then the psychologist may really be of help to you.
Also, with the pre-op liquid diet - I almost cried when I found out I had to do it. Not cos I am worried about sticking to it, but because I HATE Optifast, which is what my surgeon wants me to use, it has made me vomit before when I tried it to lose weight previously. But after talking to the dietician, she gave me some great tips to get through it and the psychologist really put it into perspective - its only for two weeks and then I never have to do it again!
My surgeon has also had me on a strict "three meals a day while sitting at a table, 10,000 steps a day, minimal alcohol program" (not diet - I am still allowed to eat what I please, he is just trying to get me to learn to listen to my body - when it is full etc) and it has been a real eye opener for me. Especially as I was a massive drinker before, it wouldnt be unusual for me to put away more than a bottle of scotch in a session!
If you really want it, you'll be able to do it. And if you choose a good surgeon and support team, you'll have all the support you need.
Good luck.