Some people think best at dawn and some at midnight. Stop apologizing for your clock and just use it.

Your best hours are largely not up for negotiation, and treating them as a discipline problem wastes years. Some minds are sharpest early and some only arrive properly late at night, and neither version is the correct one. The apology usually comes from comparing yourself to a schedule somebody else designed.

Find out when your good hours actually are by tracking it for two weeks rather than guessing. Then defend those hours for the work that needs them, and put the low-effort tasks where you are slow. Arranging the day around the truth beats fighting it every morning.