Who's making the meals in your house? Who buys the groceries? I don't know your situation, but if you are the mother and spouse in the home, it is to your family's benefit that you get and stay healthy.
Do what you can do: take charge of your own health; and that means make yourself healthy meals and buy healthy snacks. If you are in charge of the meals and food; then use that to your advantage -- just start buying healthy stuff and stop buying the junk.
I don't bake anymore; I only make healthy things and those that I know I won't be tempted to eat. It was a process, but one day, I just decided that my health needed to come first; and stopped sacrificing myself for everyone else. I had a talk with my DH and he came on side with me; if he buys junkies, he puts them away in his hideaway cubby near where he watches tv.
Don't let what others do deter you from doing what you need to do to get healthy again; just make a committment to do what's best for your health.
You can do this: take charge of your life starting today!
You can google for lots of healthy diabetic recipes from the diabetic association online. I make all our meals healthy now, even when guests come and I have never had any complaints yet becuz they don't even notice it!