Why am I dizzy all the time and get headaches daily, always tired, and blurry vision sometimes. I also have type 1 diabetes for 4 years. Whats wrong?

Poorly controlled. Diabetes can give you all those symptoms. Have to be aggressive with management. Diet, exercise, lose weight, stay away from carbs. Also be sure your thyroid levels are normal. Discuss this with your doctor or endocrinologist. Very , very important to take care of this asap before complications arise!
Dizzy and headaches. Type one diabetics ( brittle) areole likely to have swings in blood sugars that could explain symptoms. Co- morbid condition of blood pressure should also be checked as well. Your primary physician will be first to help but keep a log of your blood glucose readings throughout the day and night if you get up or wake up shaking or sweating heavily.