I weighed a little under 400 lbs for a very long time. I was in my early 20s the last time I was at my goal weight. Girl, you got me beat on the 6" heels. I can go about 3.5" before they just hurt too much. Plus I'm a hair taller than 5'10 so can you say amazon?
Anyway, with my lapband I got close to goal. Close enough that it seemed doable. Here are some of the other things I suspect you might enjoy, whether you're actually thinking about them or not. If you feel nervous, focus on these. Maybe it will just make you more nervous, but it's working for me.
Every hesitate going somewhere, or purposely avoid, or try and scope it out ahead of time, because you're afraid the chairs will have arms and you won't fit? That will become a thing of the past. And the first time you sit at that booth and realize not only is your stomach NOT being cut by the table, but you actually have room to spare, it's all gonna be sooo worth it.
Do you ever (like every day) beat yourself up because you know you should be doing something about your weight, but aren't? Imagine the first time you can stop yourself mid-thought and realize I'm freaking doing it.
Have you ever lost the weight, or part of it, before? Have you done it again and again? I can lose weight, no problem. I cannot maintain weightloss. I go from a state of losing, to a state of gaining. Stop thinking about the weight you're going to lose, and start thinking about the weight you're never going to have to lose again. See the difference?
One day, probably sooner than you think, you're going to be walking somewhere and pass in front of a window, and for a split second you're not going to know who's in your reflection. You might even think something kind of strange like, "Oh, weird, that girl has my same skirt on..." before your brain can process that it IS you.
You're going to feel very proud of yourself when you leave food on your plate. It's an odd sort of "atta boy" to your ego. Of course, your wait staff will just think the food was bad, or that you're trying to impress someone. F em.
You're going to find some happy discomforts. Like maybe the way you sit in your car, if you prop your left knee against the door, you're going to realize that knee bone is hitting in the door and it hurts. But around the same time, you're also going to realize you can get your seatbelt on, even if you're wearing a coat, and still be able to move.
One of these days you're going to have your hands crossed and it's just going to kapow hit you how slender your fingers are. And around that time, your shoes are going to start sliding off your feet. We forget about things like our fingers, feet, ankles...
Oh, and do you get cankles if you sit for too long? That tends to go away too, or at least really really lessen.
That bump in your chest that might freak you out? That's a bone. You're gonna have a lot of 'em. The first time I saw my collarbones casting a shadow on my chest? Hmm what did I do, actually... probably strutted around like I was a skinny minny.
Now, no nerves, only smiles.