How much sleep do you get? I've found that getting 8 hours of sleep and then getting up immediately when the alarm rings is the best way for me to get started in the day; waiting too long with getting up, getting dressed, or getting started just makes me more drowsy and adds mental inertia.
Naturally we're all individuals, so what works for me may not be right for someone else.
Does that include sleeping consistently at least 8 hours a night for at least a few weeks straight? In my experience, sleeping long after not getting enough sleep makes you feel even more tired the first few days.