Welcome to this forum Eshalia :)
Seriously, what with Christmas and all that sort of stuff, Jan 28th will be here before you know it.
There are a lot of resources for you to read, read, read in the meantime; and closer to the time you'll be wanting to prepare and pack your bag!!!
I am guessing that they will be wanting you to Optifast pre-op???
Just for interest, it appears that low carbohydrate diets are now the management of choice for T2 Diabetics. I have put some info in the "Resources" section (and in fact there is some more I haven't put in.) Worthwhile giving a very low-carb diet a go for a while?
All the best,