Check your diet. Unless u are diabetic, try eating more fruits. The good ones too, like bananas, avocado, mango, berries, watermelon, pineapple. All the fruits. Drink water as soon as you wake up, along with the sunlight.

Also, you can train yourself. Just do an alarm at the time you wake up usually, and then little by little make that alarm earlier and earlier, just a thought.