How much do you think I can lose????

Hi all, thank you for taking the time to read this and hopefully provide some advice/insight. I know that every person is different, but generally, here's the situation. We just booked a vacation to Disney for Christmas week and I am so excited about it. At the same time though, I now weigh approximately 249 (although I've been on my protein shake diet for two days now). I am afraid that I won't be able to comfortably fit on the rides. (At 200 lbs four years ago, it was becoming a tight squeeze.) :wink_smile: I was hoping to lose as much as 35-40 pound before December 22nd. I am aiming at November 7th for lap band, pending the surgeon's receipt of the approval which is apparently on its way. With applied effort, what do you guys think? Could that be a realistic goal??