Although your habits likely impact your energy levels, chances are it wouldn't matter what you ate or drank, you would still wake up bright and early. Our natural sleep cycle (circadian rhythm) is pretty well set in our bodies from an early age, maybe birth. They are not readily changed and studies have shown that even among people who have undergone intense "retraining" to teach themselves to sleep and wake on "more normal" schedules, a majority will have lapses back into their old habits within 6 months.

I struggled with it for decades, spending much of my life operating on 4-6 hours of sleep a night. Still, I would be going strong at midnight. I chose to believe the theory that in the evolutionary process it paid off for some members of a clan/tribe to be biologically predisposed to being more alert during the night as they would be better equipped to keep watch while the rest of the group slept. They could then rest while others were up and about, thus security for the group was insured.

In modern society, these evolutionary holdovers don't provide any big advantage to the "group" and may prove a disadvantage to the individual. They are what they are though and for some of us adapting is the best we can do. Working night shifts, slipping in naps during lunch and after work, catching up a little on weekends, all ways of dealing with CRSD (Circadian Rhythm Sleep Disorder) but beware "retirement" . I am now on a fairly regular schedule of sleeping between 3 and 11 AM nightly (daily??).