I'm sorry you're having difficulties controlling your diabetes, but it's great that you want to do something about it right away. That's the best way to stay feeling your best and protect your long-term health. As for a list of foods that everyone with diabetes should or shouldn't eat, unfortunately, there isn't any such thing. The plain truth is that just about any food can raise blood sugar under certain circumstances.
Portion size makes a big difference.
However, you can't make a nutritionally complete, healthy, and enjoyable life eating those things alone, so you need to eat bread, cereal, fruit, and dairy products to fill out your nutritional needs. All of those foods contain carbohydrate, and carbohydrate requires insulin for its use. If your blood sugars are going up after you're eating, it's probably because your body is no longer making enough insulin to handle the amount of carbohydrate you're eating. The trick in type 2 diabetes is to figure out how much carbohydrate you can eat at a meal without having your blood sugar go too high. The most direct way to do this is to test your blood sugars before and after eating, keeping track of how much you eat.