My favourite snack is Hartley no added sugar jelly which I have with lashings of whipped cream and 5g of chia seeds. Because the cream is a healthy fat I promise it will keep you full for a good while.
One thing I learned when I was diagnosed was just how much cr*p is put into the foodstuff we buy. I now make everything myself, even low carb bread (I have bread rolls in the oven as I type) they are full of healthy, wholesome ingredients and they don't touch my BG. Once you ease your body away from the carb cravings we all had I would guess, your appetite will diminish and you won't be feeling like you are now.
Don't worry about things just now, just focus by 'eating to your meter' what you can and can't tolerate. Some of us tolerate carbs better than others, I don't tolerate them well at all, so eat a very, very low carb diet, but the change in my health and how I feel is nothing short of staggering.
Good luck.