Drink a glass of water
First thing in the morning drink a tall glass of water. It will re-hydrate you, flush out toxins and help get your metabolism going. You don't have to gulp it all at once, sip it as you're going through your morning routine.
Have a pre-workout snack
But, this could depend on how soon you start your morning workout. If you exercise within 30 minutes to an hour after waking than your energy level may be okay. Any longer then that you may need a small snack to help get you through your workout. Pair a carbohydrate with a protein: a banana with peanut butter, whole wheat toast with peanut or almond butter, or string cheese with an apple.
Immediately put on your workout clothes when you wake up
This will psych up your brain for your workout and mentally prepare you to get it done. Through the power of suggestion you're telling yourself it will happen.
By giving yourself every little advantage you will be more successful in reaching your fitness goals.
Useful practical information and a workout or two...